Originally Posted by
boybi
What do this actually mean, that the J cabin is fully booked? But I believe that all J fares have free advance seat selections, and there are more open seats than occupied seats, which mean most passengers do not pre-select their seats in J?
And, one step further, as NomadAbroad writes: It's an indication, the flight will move 1-2 days forward or backward.
Closely monitor, and you might be the first one trying to book available availability on those alternative flights and may have luck.