Originally Posted by sptrout
I cannot comment about NCL, but yes you request either traitional (assigned seating & time) or MTD (open seating & time) at the time of booking, or by logging into "My Celebrity" and changing it to your preferred dining. The exception is if you are booked in an Aqua Class Cabin then you are assigned to "Blu" which is all open seating.
Do not pick Select Dining if you are in Blu. For some reason they take you out of Blu and put you in the MDR. Blu is all open seating so no reason to choose Select but if anyone if booking do not take Select if in AQ.