# 20 mins Intro Call with Antra Verma

> In this call, we'll cover - where your team is spending time on repetitive work which workflows are costing you most time or money whether automation can realistically benefit your business

- Host: Antra Verma
- Duration: 20 min
- Location: Google Meet
- Host time zone: Asia/Kolkata
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/antra-v/intro
- Event type id: 6083344

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=6083344&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": 6083344,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "bookingFieldsResponses": {
    "business_description": "…",
    "business_pain": "…",
    "lead_source": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `business_description` (What does your agency do?), `business_pain` (What's your biggest bottleneck right now?)
- Optional fields: `lead_source` (How did you find me? (Optional))
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.