# Shirer Automation Intro Call - Your business process Audit with Justin Shirer

> What we'll cover: We'll walk through the parts of your agency's day that eat up the most time, the workflows your team does over and over, and the manual work that keeps your best people from selling. From there, we'll identify exactly where automation makes sense for your agency and what it would take to build. No pitch. No pressure. Just a conversation about your process.

- Host: Justin Shirer
- Duration: 30, 60 min
- Location: MS Teams
- Host time zone: America/Chicago
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/justin-shirer-shirerautomation/intro
- Event type id: 6430789

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=6430789&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": 6430789,
  "start": "<UTC ISO 8601 start from the slots response>",
  "lengthInMinutes": 30,
  "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.
- `lengthInMinutes` picks one of 30, 60; pass the same value to the slots request as `duration`.