# Growth Conversation with Felix @Ubiqle with Felix Osiobor

> • Tell us what you're trying to grow, improve, or solve • We'll explore what's getting in the way • We'll help identify the most practical digital next step Can’t find a time that works? Send us an email and we’ll arrange one.

- Host: Felix Osiobor
- Duration: 15 min
- Location: Google Meet, Cal Video
- Host time zone: America/Toronto
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/ubiqle-felix.osiobor/chat-with-felix-ubiqle
- Event type id: 973534

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=973534&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": 973534,
  "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` (Briefly describe what you need?), `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.