# 20 min Bottleneck call w/ romeo diaz, founder of Guava with romeo diaz

> Hello! I'm Romeo. I build AI automations and agents for owner-led MSPs, IT services firms, and tech staffing firms using the latest tools and techniques. Get your own team using AI on real work, take on more clients with the people you have, and launch AI services your clients will pay for! No deck, no pitch. Let's find out if we can help you grow. Cheers!

- Host: romeo diaz
- Duration: 20 min
- Location: Google Meet
- Host time zone: America/Los_Angeles
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/romeodiazsf/20min
- Event type id: 1974444

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=1974444&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": 1974444,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "Interested-in": "…",
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `Interested-in` (Interested in:)
- 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.