# Rittik - Intro call with Rittik Sadhukhan

> If you can't find a convenient time for you due to scheduling or time-zone conflicts, please email hello@rittiksadhukhan.com and we'll work something out. If you’d prefer to send your questions via email, send them to hello@rittiksadhukhan.com for a same day response. Please share anything that would help me prepare for this meeting. This call is strictly reserved for those interested in my services. All other inquiries can be sent to hello@rittiksadhukhan.com

- Host: Rittik Sadhukhan
- Duration: 20, 30, 45 min
- Location: Cal Video
- Host time zone: Asia/Calcutta
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/rittiksadhukhan/intro-call
- Event type id: 5287515

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=5287515&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": 5287515,
  "start": "<UTC ISO 8601 start from the slots response>",
  "lengthInMinutes": 30,
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address)
- 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.
- `lengthInMinutes` picks one of 20, 30, 45; pass the same value to the slots request as `duration`.