# Collective | Next Steps & Getting Started with Kendall Calvin (KC)

> Quick touchpoint to reconnect, knock out any final questions that came up since our first chat, and map out your next steps. From there, we’ll walk through the simple onboarding setup to get your bookkeeping, payroll, and tax roadmap rolling so you can put your back office on cruise control. Talk soon!

- Host: Kendall Calvin (KC)
- Duration: 15 min
- Location: Zoom Video
- Host time zone: America/Chicago
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://collective.cal.com/kcalvin/15min
- Event type id: 7644149

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=7644149&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": 7644149,
  "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.