# Discovery Call (15 Min) with Fabian Hinsenkamp

> In this session, you'll get a sneak peek into what it's like to work with me, your guide and mentor on the journey to landing your dream job in Big Tech. Schedule our chat and bring your curiosity, bring your questions, and let's make this a turning point in your career.

- Host: Fabian Hinsenkamp
- Duration: 15 min
- Location: Cal Video
- Host time zone: Europe/Berlin
- Confirmation: The host confirms each booking; it stays pending until they accept it.
- Booking page: https://cal.com/hinsencamp/discovery-call
- Event type id: 360016

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=360016&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": 360016,
  "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.
- A successful response is a pending booking request.