# Introduction Call with Michael de Jong

> Let’s have a quick call to figure out your next step. No strings attached and completely free. No matching times? Email me at michael@dejongm.com

- Host: Michael de Jong
- Duration: 30 min
- Location: Google Meet
- Host time zone: Europe/Amsterdam
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/michael-de-jong/intro-call
- Event type id: 3766823

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=3766823&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": 3766823,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "bookingFieldsResponses": {
    "attendeeCompanyWebsite": "…",
    "What-services-are-you-looking-for": "…",
    "attendeeBudgetRange": "…",
    "What-is-your-project-timeline": "…",
    "notes": "…",
    "How-did-you-find-me": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `attendeeCompanyWebsite` (Company website or LinkedIn), `What-services-are-you-looking-for` (What services are you looking for?), `attendeeBudgetRange` (What is your budget?), `What-is-your-project-timeline` (What is your project timeline?)
- Optional fields: `notes` (What would you like to discuss?), `How-did-you-find-me` (How did you find me?)
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.