# 30 min with Demi with Demi Bernice

> Hey! Book a call with me below. Super excited to talk to you soon!

- Host: Demi Bernice
- Duration: 30 min
- Location: Zoom Video
- Host time zone: Asia/Manila
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/demi-bernice-o92ufv/30-min-with-demi
- Event type id: 7607085

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=7607085&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": 7607085,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "ai-feeling": "…",
    "notes": "…",
    "newsletter-optin": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `ai-feeling` (How do you feel about using AI in your business?)
- Optional fields: `notes` (Things you want to talk about?), `guests` (Add guests), `newsletter-optin` (Yes, send me Demi's newsletter)
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.