# Hailang Zhou – Cal.com booking page

> Sales & Marketing manager

Booking page: https://tidalcontrol.cal.com/hailang

## Event types

- [Discovery call](https://tidalcontrol.cal.com/hailang/discovery): 30, 45, 60 min, confirmed instantly, event type id 388821. Discovery meeting agenda: - Introductions & getting to know each other and our companies. - Understanding your situation - Questions & next steps. Details: https://tidalcontrol.cal.com/hailang/discovery.md
- [15 min meeting](https://tidalcontrol.cal.com/hailang/15min): 15 min, confirmed instantly, event type id 388819. Details: https://tidalcontrol.cal.com/hailang/15min.md

## Check availability

```http
GET https://api.cal.eu/v2/slots?eventTypeId=<event type id>&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

Each event type's `.md` document lists its required booking fields and the `POST https://api.cal.eu/v2/bookings` request (`cal-api-version: 2026-02-25`).

## More

- API docs: https://cal.eu/docs/api-reference/v2/introduction