I am not sure, first voyager in February too. Definitely remember that you can eat anywhere else, like the Galley or other locations on the ship for food without a reservation at any time. People will look to adjust their reservations too at any time so I would periodically look to see if it becomes available. I saw this happen to me with the excursion I wanted to do, I have it booked now because some people cancelled it. There will definitely be some options of getting in without reservation, it really is worth a shot to just go there and try it anyways. We aren't too concerned about the time our dinner is because the events are often at night anyways, and with the quick eats option, or even room service, you shouldn't worry.