# 45-minute online Trial Lesson with Rodrigo Ceres

> NOTE: the lessons in-person will start on week 38 (from Monday 14th of September). Welcome to Rodrigo's guitar calendar! Here you can book your Free online Trial lesson. Just select a time slot from the available options and you are all set. This calendar will arrange your single online trial, not your weekly lessons. Once we begin with our lessons you will be able to choose a ​weekly appointment for in-person lessons. Looking forward to meeting you! Rodrigo

- Host: Rodrigo Ceres
- Duration: 45 min
- Location: Google Meet
- Host time zone: Europe/Copenhagen
- Confirmation: The host confirms each booking; it stays pending until they accept it.
- Booking page: https://cal.com/rodrigoceres/trial
- Event type id: 1381757

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=1381757&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": 1381757,
  "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.
- A successful response is a pending booking request.