Automation library · Chat assistants

Run a hotel WhatsApp concierge with Gemini and Google Sheets

Started by an incoming WhatsApp message, and works across Google Sheets and WhatsApp. It puts Gemini behind a retrieval step, so answers are drawn from documents you supply rather than from the model alone. 19 steps, 2 branches: a working afternoon to understand properly.

MediumCalls a model: GeminiRetrieval

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19 stepsMedium: a working afternoon
2Branches: places the flow splits
0Loops or waits
2Services it connects to

The flow

Starts it 2Model 3Logic 3Service 11

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

  1. 1When WhatsApp ReceivedWhats App triggerStarts it
  2. 2Gemini AI ModelLm Chat Google GeminiModel
  3. 3Get Hotel AminitiesGoogle Docs ToolService
  4. 4Upsert Reservation ToolGoogle Sheets ToolService
  5. 5Create User ToolGoogle Sheets ToolService
  6. 6Create Service Request ToolGoogle Sheets ToolService
  7. 7When Sheet Row AddedGoogle Sheets triggerStarts it
  8. 8Load Chat MemoryMemory Redis ChatModel
  9. 9Fetch Active Reservations ToolGoogle Sheets ToolService
  10. 10Update DND Status ToolGoogle Sheets ToolService
  11. 11Check Message BodyIfLogic
  12. 12Hotel Concierge AgentAgentModel
  13. 13Sync Masked ReservationsGoogle SheetsService
  14. 14Read Guest Details SheetGoogle SheetsService
  15. 15Send WhatsApp ResponseWhats AppService
  16. 16Check If DND EnabledIfLogic
  17. 17Read Reservations SheetGoogle SheetsService
  18. 18Read Service Requests SheetGoogle SheetsService
  19. 19Filter Active ReservationCodeLogic

How it's built

Starts on
An incoming WhatsApp message
Steps
19, with 2 branches
Size
Medium: a working afternoon
Connects to
Google Sheets, WhatsApp
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 Google Sheets and WhatsApp 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 WhatsApp 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. 19 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 19 steps before you point it at anything that matters.