# Lesson [Online] with ewik_42

> Epic jazz lessons with ewik_42 Suitable for: • Saxophonists of all levels, all genres • Intermediate to advanced players of other instruments seeking to improve improvisation and/or music theory. 60 minute online video lesson. Zoom, Google Meet, Discord, etc. are available. Cancellation policy: Cancellations by the student over 48 hours prior are fully refunded. Cancellations by the student less than 48 hours prior are non refundable. Any cancellations by me will be fully refunded.

- Host: ewik_42
- Duration: 60 min
- Location: Google Meet
- Host time zone: Asia/Tokyo
- Confirmation: Bookings are confirmed instantly.
- Payment: required, and collected on the booking page.
- Booking page: https://cal.com/ewik-42/lesson
- Event type id: 4485745

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=4485745&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": 4485745,
  "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.