# Treffen in Selzen with Frank Hamm

> Treffen mit Frank Hamm in seiner Wohnung in Selzen. Wählen Sie die Dauer, das Datum und die Uhrzeit. Danach geben Sie Name, E-Mail-Adresse, Betreff und (optional) zusätzliche Notizen ein. Sie müssen zunächst Ihre E-Mail-Adresse bestätigen, damit ein Tippfehler ausgeschlossen ist. Per E-Mail erhalten Sie einen 6-stelligen Code zur Eingabe auf der Formularseite. Nach einer Prüfung bestätige ich den Termin.

- Host: Frank Hamm
- Duration: 60, 120, 180, 240 min
- Location: Friedhofstraße 8, 55278 Selzen
- Host time zone: Europe/Berlin
- Confirmation: The host confirms each booking; it stays pending until they accept it.
- Booking page: https://cal.com/derentspannende/treffen-in-selzen
- Event type id: 837494

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=837494&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": 837494,
  "start": "<UTC ISO 8601 start from the slots response>",
  "lengthInMinutes": 120,
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "title": "…",
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `title` (What is this meeting about?)
- 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.
- `lengthInMinutes` picks one of 60, 120, 180, 240; pass the same value to the slots request as `duration`.
- A successful response is a pending booking request.