# General Discussion with Gooi Hean Zhen (Joshua)

> ⚠️ Please double check if you have selected the correct time zone while booking an appointment.

- Host: Gooi Hean Zhen (Joshua)
- Duration: 30, 60 min
- Location: Online Meeting, Phone call, In Person (Organizer Address)
- Host time zone: Europe/London
- Confirmation: The host confirms each booking; it stays pending until they accept it.
- Booking page: https://cal.com/joshua.ghz/general-discussion
- Event type id: 7615885

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=7615885&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": 7615885,
  "start": "<UTC ISO 8601 start from the slots response>",
  "lengthInMinutes": 30,
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "attendeePhoneNumber": "…",
    "timezone": "…",
    "confirmation": "…",
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `attendeePhoneNumber` (Phone number), `timezone` (I have double-checked that the correct time zone is selected for this booking.), `confirmation` (I confirm that all the details I have provided above are correct.)
- 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.
- `location` is optional; without it the booking uses the event’s first location.
- `lengthInMinutes` picks one of 30, 60; pass the same value to the slots request as `duration`.
- A successful response is a pending booking request.