# Invite William Over with William Dukes

> Select this option if you would like to invite William over to your house!

- Host: William Dukes
- Duration: 30, 60, 90, 120, 150, 180, 240, 300 min
- Location: Your home
- Host time zone: America/Los_Angeles
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/williamdukes000/invite-william-over
- Event type id: 6329156

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=6329156&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": 6329156,
  "start": "<UTC ISO 8601 start from the slots response>",
  "lengthInMinutes": 60,
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "location": {
    "type": "attendeeAddress",
    "address": "…"
  },
  "bookingFieldsResponses": {
    "attendeePhoneNumber": "…",
    "Other-Comments": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email:), `attendeePhoneNumber` (Phone:)
- Optional fields: `Other-Comments` (Other Comments:)
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.
- `location` is required: `location.address` is the attendee’s own.
- `lengthInMinutes` picks one of 30, 60, 90, 120, 150, 180, 240, 300; pass the same value to the slots request as `duration`.