# Initial consultation with Derrick Soh

> A first session with a Natewell TCM practitioner. We talk through your health history, sleep, digestion, stress, and daily habits, and review the tongue photo you send beforehand. Afterwards you receive a written summary with practical next steps. Herbs are not included: you source and steep anything suggested yourself. After booking, you will be asked to send a clear photo of your tongue in good light before the session.

- Host: Derrick Soh
- Duration: 45 min
- Location: Cal Video
- Host time zone: Asia/Singapore
- Confirmation: Bookings are confirmed instantly.
- Payment: required, and collected on the booking page.
- Booking page: https://cal.com/natewell-derrick/initial
- Event type id: 6440398

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=6440398&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": 6440398,
  "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.