# Free Analyst Briefing with Donnie Berkholz Ph.D.

> Briefings are a great way to get Donnie introduced or updated on your company, products, and go-to-market. They are structured as a primarily one-way presentation from vendors or service providers to the analyst, with some Q&A from Donnie to clarify areas or dig deeper. Note: all briefing attendees must be subscribers to Platify Insights' free research, or the briefing will be canceled 24 hours in advance of the scheduled time and must be rescheduled.

- Host: Donnie Berkholz Ph.D.
- Duration: 60 min
- Location: Google Meet
- Host time zone: America/Chicago
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/platify-insights/briefing
- Event type id: 272599

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=272599&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": 272599,
  "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.