Use to search and book Transfers and Sightseeings rates.
By default the rates are returned for those services, which have 'Book independent' setting enabled in the 1st tab of their profile forms.
When 'Book independent' is disabled, it means that its supplier must be inherited from the hotel, booked in advance, in the ranks of the same Order and the service rates can be found only this way:
Based on selected rate a new Order becomes created.