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AI-Powered Dental Appointment System with Telegram, Google Calendar and Sheets

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AI-Powered Dental Appointment System with Telegram, Google Calendar and Sheets preview
Open on n8n.io

Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

This workflow is an AI powered Dental Appointment Assistant that automates appointment booking, rescheduling, and cancellations through Telegram or a Webhook . It uses intelligent agents to underst...

Best for

  • Support Chatbot automation workflows
  • AI Chatbot automation workflows
  • advanced n8n builders looking for reusable templates

Tools used

@n8n/n8n-nodes-langchain.memorybufferwindow, @n8n/n8n-nodes-langchain.outputparserstructured, n8n-nodes-base.set, @n8n/n8n-nodes-langchain.mcpclienttool, @n8n/n8n-nodes-langchain.lmchatgooglegemini, @n8n/n8n-nodes-langchain.agent, n8n-nodes-base.gmailtool, n8n-nodes-base.googlesheetstool

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Aziz B.

Original n8n.io source

1.1 Workflow description

Title
AI-Powered Dental Appointment System with Telegram, Google Calendar and Sheets
Workflow name
AI-Powered Dental Appointment System with Telegram, Google Calendar and Sheets

Overview

  • This workflow is an AI-powered Dental Appointment Assistant that automates appointment booking, rescheduling, and cancellations through Telegram or a Webhook.
  • It uses intelligent agents to understand user intent, gather details, manage Google Calendar events, update records in Google Sheets, and send confirmation emails — creating a fully automated and customizable booking system suitable for any business, not just dental clinics.

How It Works

1. User Interaction

  • The workflow can be triggered via Telegram, Webhook, and can easily be extended to WhatsApp or Facebook Messenger.
  • The Planning Agent starts the conversation and collects essential details like:
    • Appointment type (book, update, or delete)
    • Date and time preference
    • Service type or reason for visit
    • Personal details (name, email, etc.)
  • Based on the user’s intent, it routes the conversation to the appropriate booking flow.

2. Booking Flow

  • The Booking Agent handles the actual scheduling logic.
  • It interacts with Google Calendar to:
    • Create new events for fresh appointments
    • Update existing events for reschedules
    • Delete events for cancellations
  • It ensures proper validation (availability, overlaps, etc.) before confirming any calendar changes.

3. Post-Booking Actions

  • Once the booking action is completed:
    • The Mail and Sheet Entry Agent updates the Google Sheet with user details such as:
      • Name
      • Email
      • Appointment date & time
      • Status (booked/updated/cancelled)
      • Short description of the appointment
    • Sends an email confirmation to the user (for all actions — create, update, or delete).
    • Sends a final message via Telegram (or chosen platform) confirming the status of the appointment.

How to Use

  • Trigger the workflow via Telegram or a Webhook URL.
  • The AI assistant will guide the user step-by-step through booking, updating, or cancelling an appointment.
  • Once confirmed, the system:
    • Updates Google Calendar automatically
    • Logs the appointment details in Google Sheets
    • Sends an email and chat confirmation message to the user

Requirements

To deploy this workflow, you’ll need:

  • n8n account (self-hosted or cloud)
  • Telegram Bot Token, or other chat integrations (WhatsApp / Facebook)
  • OpenAI or OpenRouter API Key (for AI conversation agents)
  • Google Calendar API access (to manage events)
  • Google Sheets API access (to store booking records)
  • Gmail / SMTP credentials (to send confirmation emails)

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - Simple Memory

Type / Role
@n8n/n8n-nodes-langchain.memoryBufferWindow - memoryBufferWindow
Config choices
Version 1.3

Block 2 - Structured Output Parser

Type / Role
@n8n/n8n-nodes-langchain.outputParserStructured - outputParserStructured
Config choices
Version 1.3

Block 3 - Edit Fields

Type / Role
n8n-nodes-base.set - set
Config choices
Version 3.4

Block 4 - Booking Tool

Type / Role
@n8n/n8n-nodes-langchain.mcpClientTool - mcpClientTool
Config choices
Version 1.1

Block 5 - Simple Memory1

Type / Role
@n8n/n8n-nodes-langchain.memoryBufferWindow - memoryBufferWindow
Config choices
Version 1.3

Block 6 - Structured Output Parser1

Type / Role
@n8n/n8n-nodes-langchain.outputParserStructured - outputParserStructured
Config choices
Version 1.3

Block 7 - Google Gemini Chat Model2

Type / Role
@n8n/n8n-nodes-langchain.lmChatGoogleGemini - lmChatGoogleGemini
Config choices
Version 1

Block 8 - Google Gemini Chat Model3

Type / Role
@n8n/n8n-nodes-langchain.lmChatGoogleGemini - lmChatGoogleGemini
Config choices
Version 1

Block 9 - Planning Agent

Type / Role
@n8n/n8n-nodes-langchain.agent - agent
Config choices
Version 2.2

Block 10 - Booking Agent

Type / Role
@n8n/n8n-nodes-langchain.agent - agent
Config choices
Version 2.2

Block 11 - Mail and Sheet Entry

Type / Role
@n8n/n8n-nodes-langchain.agent - agent
Config choices
Version 2.2

Block 12 - Send a message in Gmail

Type / Role
n8n-nodes-base.gmailTool - gmailTool
Config choices
Version 2.1

Block 13 - Edit Fields1

Type / Role
n8n-nodes-base.set - set
Config choices
Version 3.4

Block 14 - Append or update row in sheet in Google Sheets

Type / Role
n8n-nodes-base.googleSheetsTool - googleSheetsTool
Config choices
Version 4.7

Block 15 - OpenAI Chat Model

Type / Role
@n8n/n8n-nodes-langchain.lmChatOpenAi - lmChatOpenAi
Config choices
Version 1.2

Block 16 - OpenAI Chat Model1

Type / Role
@n8n/n8n-nodes-langchain.lmChatOpenAi - lmChatOpenAi
Config choices
Version 1.2

Block 17 - OpenAI Chat Model2

Type / Role
@n8n/n8n-nodes-langchain.lmChatOpenAi - lmChatOpenAi
Config choices
Version 1.2

Block 18 - Webhook

Type / Role
n8n-nodes-base.webhook - webhook
Config choices
Version 2.1

Block 19 - Respond to Webhook

Type / Role
n8n-nodes-base.respondToWebhook - respondToWebhook
Config choices
Version 1.4

Block 20 - Respond to Webhook1

Type / Role
n8n-nodes-base.respondToWebhook - respondToWebhook
Config choices
Version 1.4

Block 21 - Telegram Trigger

Type / Role
n8n-nodes-base.telegramTrigger - telegramTrigger
Config choices
Version 1.2

Block 22 - Send a text message

Type / Role
n8n-nodes-base.telegram - telegram
Config choices
Version 1.2

Block 23 - Send a text message1

Type / Role
n8n-nodes-base.telegram - telegram
Config choices
Version 1.2

Block 24 - Switch App

Type / Role
n8n-nodes-base.switch - switch
Config choices
Version 3.3

Showing the first 24 of 53 workflow blocks. Download the JSON for the full node graph.

3. Summary Table

Workflow AI-Powered Dental Appointment System with Telegram, Google Calendar and Sheets
Complexity advanced
Nodes 53
Categories Support Chatbot, AI Chatbot
Author Aziz B
Published 10 Oct 2025

4. Reproducing the Workflow from Scratch

  1. 1. Download the workflow JSON

    Use the JSON export at /data/workflows/9473/9473.json as the source template for this automation.

  2. 2. Import the template into n8n

    Open n8n, import the downloaded JSON, and review each node before activating the workflow.

  3. 3. Configure credentials and variables

    Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.

  4. 4. Test with sample data

    Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.

  5. 5. Activate and monitor

    Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Frequently asked questions

What does AI-Powered Dental Appointment System with Telegram, Google Calendar and Sheets do?

This workflow is an AI powered Dental Appointment Assistant that automates appointment booking, rescheduling, and cancellations through Telegram or a Webhook . It uses intelligent agents to underst...

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your Support Chatbot, AI Chatbot use case.