# 20-Minute Systems Diagnosis with Josh Douglas

> This is a direct 1-on-1 call with me. I’ll ask a few questions, look at where things break down (leads, follow-up, booking), and give you the simplest next step — even if we never work together. This call is for service-based businesses that want inbound leads consistently turning into booked appointments without hiring more staff. We’ll cover: • Where your leads are coming from now • Where follow-up is breaking • How an automated system could plug in • Whether it actually makes sense to build this If it’s a fit, I’ll outline the system and next steps. If not, you’ll still leave with clarity. No pitch. No pressure. This is not for startups or businesses without steady inbound leads yet.

- Host: Josh Douglas
- Duration: 20 min
- Location: Zoom Video
- Host time zone: America/New_York
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/josh-douglas-automation-consultant/booked-appointments
- Event type id: 4249029

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=4249029&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": 4249029,
  "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), `email` (Email address)
- Optional fields: `attendeePhoneNumber` (Phone number), `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.