# 30 Min Meeting with Tam Nguyen

> Hi, I'm Tam 👋🏼 founder of Dawn Again AI and the person behind Tech With Tam. I spend most of my time helping founders and teams untangle messy work, capture the judgment usually stuck in people’s heads, and build AI-supported systems they can actually use. I also make practical resources about AI, operations, and better ways of working. Whether we’re talking shop, exploring a project, or simply getting to know each other, feel free to bring the messy version. Those are usually the most interesting conversations 😁 → Browse the AI library → See how I work

- Host: Tam Nguyen
- Duration: 30 min
- Location: Google Meet
- Host time zone: America/Los_Angeles
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/tam-nguyen/30-min
- Event type id: 1555587

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=1555587&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": 1555587,
  "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.