Note:All Applications that are running in the Sunnycars-Network should always provide this information.
This Property is optional, because it's optional in EditReservationRequest too. Due to the fact, that this property is not changeable up to now, it has to be handed over as it was delivered by GetReservation - Method or GetReservationList - Method.
EditReservationRequest Class | SunnyCars.Schema.Osi.WsReservation.V4 Namespace