# Webinar with Erik Gullstrand

> Conversational agents. Here's how they work. Concrete tips and advice on how YOU can use conversational agents in your business, in your exhibition, and on your objects. 45 minutes. Free. Live, with Q&A.

- Host: Erik Gullstrand
- Duration: 45 min
- Location: Google Meet
- Host time zone: Europe/Stockholm
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/erik-gullstrand-jlji2t/webinar
- Event type id: 5620132

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=5620132&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": 5620132,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "bookingFieldsResponses": {
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address)
- Optional fields: `notes` (Additional notes)
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.