# Mini GTM diagnosis (15 min) with Travis Ross

> We find the single biggest leak in your outbound pipeline and prescribe one concrete fix. Fifteen minutes. Free. You leave with: • One named bottleneck in your outbound • One prescribed next step Feel free to bring one market or service line we can walk through. Optional details help us tailor the conversation. Skip any that do not apply:

- Host: Travis Ross
- Duration: 15 min
- Location: Google Meet
- Host time zone: Europe/Kyiv
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/travisross/15min
- Event type id: 863940

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=863940&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": 863940,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "notes": "…",
    "companyWebsite": "…",
    "What-should-we-focus-on": "…",
    "How-did-you-find-this": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address)
- Optional fields: `notes` (Additional notes), `guests` (Add guests), `companyWebsite` (Company website), `What-should-we-focus-on` (What should we focus on?), `How-did-you-find-this` (How did you find this?)
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.