# 30-min call with Haoyang · Canlah AI with Haoyang Pang

> Video call on Google Meet. Joining from mainland China? Tick it in the form and we'll send a Zoom or Tencent Meeting (VooV) link instead. 视频会议默认用 Google Meet；如在中国大陆参会，请在表单里勾选，我们会改发 Zoom 或腾讯会议链接。

- Host: Haoyang Pang
- Duration: 30 min
- Location: Google Meet
- Host time zone: Asia/Singapore
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/canlah-haoyang/30min
- Event type id: 6783551

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=6783551&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": 6783551,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "notes": "…",
    "company": "…",
    "from_china": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address)
- Optional fields: `notes` (Additional notes), `guests` (Add guests), `company` (Company / website · 公司或网站), `from_china` (I'm joining from mainland China · 我在中国大陆参会)
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.