# New to SGRT? with C-RAD

> If you’re exploring SGRT for the first time, the C-RAD team is happy to walk you through the basics: how it works, what problems it solves, and where it fits into your existing workflow.

- Host: C-RAD
- Duration: 20 min
- Location: C-RAD Booth 2826
- Host time zone: America/New_York
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/c-rad/sgrt
- Event type id: 6582205

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=6582205&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": 6582205,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "Company-name": "…",
    "Job-title": "…",
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `Company-name` (Company name), `Job-title` (Job title)
- 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.