# Free Ad Growth Audit Call with MD RANGA BABU

> A free 30-minute call with Ranga for business owners who want more customers from ads. We'll look at where your business is now, where you want it to be, and what's holding your ads back. If we're a fit, I'll show you the plan. If we're not, you still leave with a free audit and a growth guide for your business.

- Host: MD RANGA BABU
- Duration: 30 min
- Location: Google Meet
- Host time zone: Asia/Dhaka
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/merangababu/ad-growth-audit
- Event type id: 7854244

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=7854244&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": 7854244,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "What-do-you-sell--and-who-do-you-sell-it-to": "…",
    "attendeePhoneNumber": "…",
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `What-do-you-sell--and-who-do-you-sell-it-to` (What do you sell, and who do you sell it to?)
- 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.