Somebody for Irish Rail should go on a customer service course. How difficult would it be show the "not bookable" status on these trains?
Irish people are used to this sort of vagueness and uncertainty but they must be losing tourism trade when people try to book a train before they travel to Ireland, assume it is booked out and book a bus instead.
It is like this with everything at Irish Rail - little details not picked up on. Things like their endless inability to make the gents toilet at Connolly work properly, make the audible announcements work, make WiFi work, keep trains clean, have booking offices open their posted hours - the list goes on.