# cancel_booking

Behavior, inputs, outputs and permissions for cancel_booking.

Source: https://docs.getridian.com/developers/tools/cancel_booking/
Language: en
Reviewed: 2026-10-06

This reference is generated from the published tool contract.

## Behavior and boundaries

Cancels a booking as the host. Ridian deletes the calendar event and emails the booker, with the reason if given. Cannot be undone; confirm with the user first.

## Permissions

Granted scopes, accounts, calendars and visibility rules limit access. Workspace administrators do not automatically gain access to other users’ accounts.

`bookings:write`

[Consent and boundaries](https://docs.getridian.com/developers/authentication/)

## Input

```json
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "booking_id": {
      "type": "string",
      "minLength": 1,
      "maxLength": 64,
      "description": "booking_id from list_bookings."
    },
    "reason": {
      "description": "Shown to the booker in the cancellation email.",
      "type": "string",
      "maxLength": 1000
    }
  },
  "required": [
    "booking_id"
  ],
  "additionalProperties": false
}
```

## Output

```json
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "booking_id": {
      "type": "string"
    },
    "cancelled": {
      "type": "boolean"
    },
    "calendar": {
      "type": "string"
    }
  },
  "required": [
    "booking_id",
    "cancelled",
    "calendar"
  ],
  "additionalProperties": false
}
```

## Errors and retries

Check the tool result for errors. Do not blindly retry writes after a timeout. Check the current resource or send status first.

[Error handling](https://docs.getridian.com/developers/errors/)