# 🌺 Next Singing Lessons 🌺 with Beata Całka

> You know what to do! Full class rules: https://docs.google.com/document/d/1VG3nUQCU5AXa6QPTAQjnRHfihWdmcC_fIPca9k21uNU/edit?usp=sharing _______________________ 🌸 https://www.instagram.com/beatacalka/ 📞 +48 503 906 760 (text message please!) 📌 ul. Paryska (Saska Kępa, Warsaw) 📌 or online

- Host: Beata Całka
- Duration: 60 min
- Location: online, In Person (Organizer Address)
- Host time zone: Europe/Warsaw
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/beatacalka/next-lessons
- Event type id: 5948591

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=5948591&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": 5948591,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "bookingFieldsResponses": {
    "attendeePhoneNumber": "…",
    "warunki-rezerwacji": "…",
    "regulamin": "…",
    "Student-s-age": "…",
    "kontakt-do-opiekuna": "…",
    "rodzaj-zajec": "…",
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (E-mail address), `attendeePhoneNumber` (Phone number), `warunki-rezerwacji` (I confirm that I have read the booking conditions:

<br data-soft="true">****Booking conditions:****<br data-soft="true">• ****Free cancellation**** – up to 24 hours before the scheduled time.

• ****Cancellations later than 24 hours but less than 6 hours before the class**** – a fee of 50% of the lesson fee applies.

• ****Cancellations less than 6 hours before the class or absences without prior cancellation**** – a fee of 100% of the lesson fee applies.

• ****Student lateness**** – class time is counted from the scheduled time and the lesson will not be extended.), `regulamin` (****I confirm that I have read the regulations:****

[https://docs.google.com/document/d/1VG3nUQCU5AXa6QPTAQjnRHfihWdmcC\_fIPca9k21uNU/edit?usp=sharing](https://docs.google.com/document/d/1VG3nUQCU5AXa6QPTAQjnRHfihWdmcC_fIPca9k21uNU/edit?usp=sharing))
- Optional fields: `Student-s-age` (Student's age), `kontakt-do-opiekuna` (Guardian's phone number + guardian's name), `rodzaj-zajec` (I'm signing up for:), `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.
- `location` is optional; without it the booking uses the event’s first location.