The train I want to travel on says in respect of reservations -
Prices unavailable
No price results were found. Pass holder reservations may be sold out for this connection, but there are other ways to check for available seats—more info below our timetable.
Reservations are not compulsory however.
Can I travel on this train or not? If there are no pass holder reservations, does this mean that no further pass holders can travel or just that they are not guaranteed a seat.