# 1:1 Biology Session with Olivia Koleczek

> A one hour online lesson with Olivia, founder of Phlo and an AQA biology specialist. We work on whatever is actually costing marks, which is usually exam technique on the longer questions rather than re-teaching content you already know. Payment is taken at booking and you can reschedule up to 24 hours before.

- Host: Olivia Koleczek
- Duration: 60 min
- Location: Cal Video
- Host time zone: Europe/London
- Confirmation: Bookings are confirmed instantly.
- Payment: required, and collected on the booking page.
- Booking page: https://phlo-bio.cal.com/hello/1-1-biology-session
- Event type id: 345952

## Check availability

```http
GET https://api.cal.eu/v2/slots?eventTypeId=345952&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.eu/v2/bookings
cal-api-version: 2026-02-25
Content-Type: application/json

{
  "eventTypeId": 345952,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "How-did-you-hear-about-us": "…",
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `How-did-you-hear-about-us` (How did you hear about us?)
- 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.