# Founder - Setup Session - Onboarding + Support with Johnathan Olsen

> You're officially a Signal Flow Systems Founding Adopter. Your setup details are in — your build starts now. — Here's what happens from here: We come to Session 1 fully prepped — everything you shared becomes our baseline. (Pro-Tip: Keep one dedicated notebook just for your Signal Flow sessions.) You'll run a live test call before we ever ask you to trust it. Phase 1 goes live by the end of Session 1 or 2. We'll nail down the exact date before we hang up. — Your next steps are here: signalflow.systems/welcome — Questions before then? No sweat — just reply to this email or reach me directly. You can also call FLOW anytime, 24/7, to get scheduled directly onto my Private Founders Calendar: 775-GET-FLOW (Just let FLOW know that's why you're calling .) — Genuinely glad you're here. Talk soon. — Johnathan

- Host: Johnathan Olsen
- Duration: 60 min
- Location: Zoom Video
- Host time zone: America/Los_Angeles
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/john-olsen/vip-founders-setup
- Event type id: 6168861

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=6168861&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": 6168861,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "attendeePhoneNumber": "…",
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `attendeePhoneNumber` (Phone number)
- 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.