# Automated reservation system with Telegram and Gemini: n8n workflow

> Started by an incoming Telegram message, and works across Gmail, Google Sheets and Telegram.

Source: https://millionrounds.com/workflow/automated-reservation-system-with-telegram-and-gemini (Millionrounds; every figure on the page links to its filing or article)

[Automation library](https://millionrounds.com/workflows) · [Scheduling](https://millionrounds.com/workflows?category=Scheduling#library)

# Automated reservation system with Telegram and Gemini

Started by an incoming Telegram message, and works across Gmail, Google Sheets and Telegram. It puts Gemini behind a retrieval step, so answers are drawn from documents you supply rather than from the model alone. 9 steps: a working afternoon to understand properly.

Medium Calls a model: Gemini Retrieval

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fautomated-reservation-system-with-telegram-and-gemini)

**9 steps** Medium: a working afternoon

**0** Branches: places the flow splits

**0** Loops or waits

**3** Services it connects to

## The flow

Starts it 1 Model 3 Service 5

The steps in the order they run, from what starts it.

- 1 **Telegram Trigger** Telegram trigger *Starts it*
- 2 **Google Gemini Chat Model** Lm Chat Google Gemini *Model*
- 3 **court info** Google Sheets Tool *Service*
- 4 **Gmail** Gmail Tool *Service*
- 5 **Google Sheets** Google Sheets Tool *Service*
- 6 **Postgres Chat Memory** Memory Postgres Chat *Model*
- 7 **Prepare Prompt** Ai Transform *Service*
- 8 **AI Agent** Agent *Model*
- 9 **Telegram** Telegram *Service*

## How it's built

- **Starts on:** An incoming Telegram message
- **Steps:** 9
- **Size:** Medium: a working afternoon
- **Connects to:** Gmail, Google Sheets, Telegram
- **Model:** Gemini
- **Retrieval:** Answers are drawn from documents you supply, not from the model alone

## Questions

What does it need to run?

An n8n account, plus your own Gmail, Google Sheets and Telegram accounts, and a key for Gemini. You connect your own accounts after importing it; none are included.

What starts it?

It starts on an incoming Telegram message.

Does it use AI?

Yes. It calls Gemini. Its answers draw on documents you give it, not on the model alone. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Plan an afternoon. 9 steps is enough that you should read each one before running it.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

**Before you run it**

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 9 steps before you point it at anything that matters.

## Run it in n8n

- **Create your n8n account** Free to start. n8n is where the workflow runs. [Create an n8n account ↗](https://millionrounds.com/n8n)
- **Download the workflow** Free with a Millionrounds account. [Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fautomated-reservation-system-with-telegram-and-gemini)
- **Paste it into n8n** Open a new workflow in n8n and paste. Then connect your own accounts.

Stored with the author's traces removed: canvas notes, instance identifiers, saved credential names and any live document they had left behind.

## Connects to

Each opens the other workflows that use it.

[Gmail](https://millionrounds.com/workflows?service=Gmail#library)[Google Sheets](https://millionrounds.com/workflows?service=Google+Sheets#library)[Telegram](https://millionrounds.com/workflows?service=Telegram#library)

## Workflows like it

Also scheduling, with the same services where possible, closest in size first.

- [**AI Appointment Booking & CRM Automation with GHL and Famulor** 9 steps · calls a model · Gmail](https://millionrounds.com/workflow/ai-appointment-booking-and-crm-automation-with-ghl-and-famul)
- [**AI trail run recommender agent with Gemini and Gmail** 9 steps · calls a model · Gmail, Google Calendar](https://millionrounds.com/workflow/ai-trail-run-recommender-agent-with-gemini-and-gmail)
- [**AI-powered reservation reminder calls for restaurant** 9 steps · calls a model · Google Sheets, Twilio](https://millionrounds.com/workflow/ai-powered-reservation-reminder-calls-for-restaurant)
- [**Automated voice appointment reminders with Google Calendar GPT** 9 steps · calls a model · Gmail, Google Calendar](https://millionrounds.com/workflow/automated-voice-appointment-reminders-with-google-calendar-g)
- [**Build your first AI agent with OpenAI** 9 steps · calls a model · Gmail, Google Calendar](https://millionrounds.com/workflow/build-your-first-ai-agent-with-openai)
- [**Categorize meetings and log time with Fireflies and OpenAI** 9 steps · calls a model · Google Sheets](https://millionrounds.com/workflow/categorize-meetings-and-log-time-with-fireflies-and-openai)