# Dark Retreat Consultation with Severin Geser

> This 30-minute online call offers space to address any questions or concerns about your Dark Retreat, including ideal retreat length and approaches that align with your goals. Drawing from 12 years of experience in holding space for dark retreats, I’ll guide you in preparing for this journey, helping you feel grounded, supported, and ready for deep, transformative work.

- Host: Severin Geser
- Duration: 30 min
- Location: Cal Video
- Host time zone: Pacific/Auckland
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/severin-geser/30min
- Event type id: 1278171

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=1278171&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": 1278171,
  "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.