This endpoint is used primarily for event booking. When you create service type events, you allocation specific occurrences of the event
against the service.
You can retrieve all allocations for a location by passing in zero as the service id. Otherwise, to get allocations for a specific service
pass in the service id.
The results are returned in pages. Use the offset and limit parameters to control the page start and size. Default offset is 0, and limit is 20.
Use the other query parameters to optionally filter the results list.