# Kostenloses Erstgespräch: Gastro Coaching with Bernd Kochem

> Wähle jetzt deinen persönlichen Wunschtermin für unser 30-minütiges Gespräch aus. In dieser Zeit schauen wir uns kurz an, wo dein Betrieb aktuell steht und wo deine größten Hebel für mehr Klarheit und Stabilität liegen. Ich rufe dich zum vereinbarten Zeitpunkt an. Bitte stelle sicher, dass du in Ruhe telefonieren kannst. Liebe Grüße, Bernd

- Host: Bernd Kochem
- Duration: 30 min
- Location: Attendee phone number
- Host time zone: Europe/Berlin
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/bernd-kochem/gastro-coaching
- Event type id: 4753551

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=4753551&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": 4753551,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "location": {
    "type": "attendeePhone",
    "phone": "…"
  },
  "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.
- `location` is required: `location.phone` is the attendee’s own.