Use cases are many: Let users book, check, reschedule, or cancel meetings directly from Telegram. Perfect for solopreneurs, agencies, or teams who want an AI-powered assistant that prevents double-bookings, manages Google Calendar, and even sends email invites automatically.
Good to know
At time of writing, this workflow uses OpenAI GPT-4.1-mini for natural conversation handling. See OpenAI Pricing for updated info.
This workflow relies on Google Calendar for scheduling — if the model says “conflict found,” it means an event already exists in that time slot.
How it works
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Telegram Chat: A user types natural requests like “Book a meeting with Sarah tomorrow at 2 PM” or “Do I have meetings on Friday?”.
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AI Agent (OpenAI): Interprets the request, calculates dates (using Date & Time), and decides whether to create, update, or delete a meeting.
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Conflict Checking: Before booking, the agent checks Google Calendar for existing events to avoid overlaps.
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Meeting Management:
- Create: Adds new events with title, description, attendees.
- Update: Edits existing events.
- Delete: Cancels meetings if requested.
- Get: Lists all meetings for a date or time range.
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Notifications: Replies instantly on Telegram and, if needed, sends a Gmail email with meeting details.
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Memory: Keeps context of the conversation so users can speak naturally (“reschedule that meeting to 4 PM instead”).
How to use
- Start a Telegram chat with the bot.
- Type a request in plain English (no need for structured inputs).
- The agent will confirm or suggest alternatives if a conflict exists.
- Meetings appear in Google Calendar and details can be emailed via Gmail.
Requirements
- Telegram bot connected to n8n
- OpenAI API key (for AI-driven scheduling assistant)
- Google Calendar account (for event creation & conflict checking)
- Gmail account (for sending invites & confirmations)
Customising this workflow
- Add support for multiple calendars (work, personal, shared).
- Change the conflict-resolution logic (e.g., auto-suggest nearest free slot).
- Include recurring meetings (weekly standups, monthly reviews).
- Add Slack or WhatsApp integration for multi-platform scheduling.
- Extend Gmail invites with calendar attachments (.ics files).