This is the geography level 1 ID of the guest's nationality. Where a guest has multiple nationalities, this should be the nationality of the passport that will be used during the holiday being booked.
This is a boolean field that specifies if the supplier of a component allows the component to be refunded after it has been booked or, if once booked, the price paid is not refundable.
In the options node of an extra search response, this field shows any notes for that extra option as string.
The number of stops on the outbound flight.
The number of stops on the return flight.