# Rendez-vous d’échange & conseil patrimonial with Guillaume Dehan

> Ce calendrier est à votre disposition pour planifier facilement notre prochain échange. Merci de me contacter en amont ou de préciser lors de la réservation le sujet que vous souhaitez aborder. Au plaisir de faire ce point ensemble !

- Host: Guillaume Dehan
- Duration: 60 min
- Location: Google Meet
- Host time zone: Europe/Paris
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/gdinvest/investisseur
- Event type id: 7221734

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=7221734&start=YYYY-MM-DD&end=YYYY-MM-DD&timeZone=<IANA time zone>
cal-api-version: 2024-09-04
```

The response is `{"data":{"YYYY-MM-DD":[{"start":"<ISO 8601 with offset>"}]}}`; no API key is needed.

## Book

```http
POST https://api.cal.com/v2/bookings
cal-api-version: 2026-02-25
Content-Type: application/json

{
  "eventTypeId": 7221734,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address)
- Optional fields: `notes` (Additional notes), `guests` (Add guests)
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.