AI-Powered Restaurant Booking System with Telegram, Calendar & Email Notifications

Overview

This workflow is an AI-powered Booking Assistant that automates restaurant and event reservations through Telegram. It interacts with the user in natural conversation, collects booking details (guest count, preferences, date/time, and special requests), finalizes the draft, and confirms the reservation by storing it in Google Calendar and sending an email confirmation — fully automated end-to-end.

How It Works

1. User Interaction The workflow starts with a Telegram welcome message.
   The AI agent asks step-by-step questions:
   Number of guests
   Seating preference (indoor/outdoor/private room)
   Special occasion requests (birthday, date, etc.)
   Preferred date & time
   Once details are gathered, it generates a draft booking summary.

2. Confirmation & Personal Details The user reviews the draft and confirms.
   The assistant then asks for personal details (name, email, phone number).

3. Booking & Notifications After confirmation, the details are sent to Google Calendar to create an event.
   A confirmation email is sent to the user with all booking information.
   A final Telegram message confirms that the reservation is successfully completed.

How to Use Triggered directly from Telegram Bot.
Simply start chatting with the bot to begin the reservation process.
The assistant will guide the user step by step until the booking is finalized.
Once completed, the user receives both an email confirmation and a Telegram confirmation message.

Requirements To use this workflow, you’ll need:
n8n account (self-hosted or cloud)
Telegram Bot Token (for chat interaction)
OpenAI or OpenRouter API Key (for AI-driven conversation)
Google Calendar API access (to create bookings)
Gmail / SMTP credentials (to send confirmation emails)