# Professional Consultation with Marshall Varner

> A conversation about HR, people operations, leadership, organizational challenges, nonprofit or board opportunities, or potential ways to work together. Choose Google Meet or phone. If you choose phone, please provide your number and I will call you at the scheduled time.

- Host: Marshall Varner
- Duration: 30 min
- Location: Google Meet, Attendee phone number
- Host time zone: America/New_York
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/marshall-varner/professional
- Event type id: 7873642

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=7873642&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": 7873642,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "notes": "…",
    "organization": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `notes` (What would you like to discuss, and what would make our conversation useful to you?)
- Optional fields: `guests` (Add guests), `organization` (Company or organization.)
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.
- `location` is optional; without it the booking uses the event’s first location.