# Radiance Day Retreat with Claire Campbell

> A One-Day Immersion in Rest, Resonance & Return Time: 10:00 AM – 4:00 PM Group Size: Small & Sacred (Maximum 4 participants) Location: The Radiance Room, West of Ireland Itinerary: Sample Flow of the Day

- Host: Claire Campbell
- Duration: 360 min
- Location: The Radiance Room, West of Ireland
- Host time zone: Europe/Dublin
- Confirmation: Bookings are confirmed instantly.
- Payment: required, and collected on the booking page.
- Booking page: https://cal.com/eiranu/radiance-day-retreat
- Event type id: 4475641

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=4475641&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": 4475641,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "bookingFieldsResponses": {
    "attendeePhoneNumber": "…",
    "notes": "…"
  }
}
```

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