# Product Strategy Call with Sam with Samir Vllaco

> Tell me what you are building. In 30 minutes we map the scope, the timeline and the one next step that moves your product forward. I take every call myself.

- Host: Samir Vllaco
- Duration: 30 min
- Location: Google Meet
- Host time zone: Europe/Tirane
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/samirvllaco/30min
- Event type id: 4095693

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=4095693&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": 4095693,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "What-are-you-building--and-where-are-you-stuck": "…",
    "What-is-your-budget-for-this-project": "…",
    "attendeePhoneNumber": "…",
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `What-are-you-building--and-where-are-you-stuck` (What are you building, and where are you stuck?), `What-is-your-budget-for-this-project` (What is your budget for this project?)
- Optional fields: `attendeePhoneNumber` (Phone number), `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.