# IRI-Sys Demo with IRI-Sys Team

> Let's chat about how IRI-Sys can help your business! Please choose 30mins for a quicker introduction and initial exploration or 75mins for a more in-depth demo!

- Host: IRI-Sys Team
- Duration: 30, 75 min
- Location: Google Meet
- Host time zone: America/New_York
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/iri-sys/demo
- Event type id: 3453535

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=3453535&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": 3453535,
  "start": "<UTC ISO 8601 start from the slots response>",
  "lengthInMinutes": 75,
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "CompanyName": "…",
    "PhoneNumber": "…",
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `CompanyName` (Company)
- Optional fields: `PhoneNumber` (Phone Number), `guests` (Add guests), `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.
- `lengthInMinutes` picks one of 30, 75; pass the same value to the slots request as `duration`.