# OpenWard selection call with Sobin Thomas

> A 30-minute call about OpenWard, the AI for Good programme ArkOne runs for hospitals in India. We go through how your hospital runs, where the day gets stuck, and how selection works.

- Host: Sobin Thomas
- Duration: 30 min
- Location: Cal Video
- Host time zone: Asia/Calcutta
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/sobin-arkone/openward-selection-call
- Event type id: 7793377

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=7793377&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": 7793377,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "company": "…",
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `company` (Hospital or clinic)
- 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.