# Signal Flow Systems | Strategy Call with Johnathan Olsen

> A personalized walkthrough showing how Signal Flow Systems helps you secure every relationship opportunity earned, 24/7… Capturing missed leads, qualifying, routing, and scheduling prospects automatically, and securing new revenue opportunities directly into your teams calendar. This session is focused on YOUR business workflow and whether this system is a fit.

- Host: Johnathan Olsen
- Duration: 30 min
- Location: Zoom Video
- Host time zone: America/Los_Angeles
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/john-olsen/strategy-call
- Event type id: 4399545

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=4399545&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": 4399545,
  "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.