# Reference Call with Customers: Hear Firsthand Experiences with Manish Tandon

> Event Description This 30-minute reference call allows you to connect directly with one of UniqueMKTG's existing clients. Gain valuable insights from their firsthand experiences on how our marketing solutions helped them achieve significant business growth, improve marketing ROI, and streamline operations. Our clients will share the success stories and results they have achieved with UniqueMKTG's customized strategies. Key Highlights: Real-world success stories from UniqueMKTG clients Direct feedback on how our services transformed their marketing approach Opportunity to ask questions and understand client outcomes How it works: Select a suitable time slot from the available options. Manish Tandon will coordinate the call between you and the reference customer. You'll receive a confirmation email with details and a calendar invite. At the scheduled time, join the Zoom call to speak directly with our reference client. Who should attend: Business owners and decision-makers Marketing professionals evaluating UniqueMKTG's services Companies seeking to learn from client success stories

- Host: Manish Tandon
- Duration: 30 min
- Location: Google Meet
- Host time zone: America/Chicago
- Confirmation: The host confirms each booking; it stays pending until they accept it.
- Booking page: https://cal.com/manish-tandon-bq7yqa/reference-call-with-customers-hear-firsthand-experiences
- Event type id: 1292591

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=1292591&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": 1292591,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "title": "…",
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `title` (What is this meeting about?)
- 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.
- A successful response is a pending booking request.