# Set Up a Discovery Call with John Mihalyo

> Thank you for scheduling a time to connect! I'm looking forward to our conversation. If there's anything you'd like me to know ahead of time, or something specific you want to make sure we cover, just reply to this email. If something comes up and you need to move our time, no worries at all. You can reschedule right from your calendar invite. See you soon! John

- Host: John Mihalyo
- Duration: 45 min
- Location: Zoom Video
- Host time zone: America/New_York
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/elementaryadvancement/virtual-cup-of-coffee
- Event type id: 554932

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=554932&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": 554932,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "notes": "…"
  }
}
```

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