IMHO the flight is fully booked in C. As other mentioned it is just before Easter.
Seat map looks like this:
AUTH- 333
0 - IST 1 - MLE
NO SMOKING FLIGHT
A B D E J K
1 . . . . * . 1
2 . . . . . * 2
3 * . * . . * 3
4 . . * * . . 4
5 . . . . 5
A B D E J K
7 seats left unallocated (stars), but not all passengers assign themselves seats in advance...
PS. Pls ignore spoiler - added by mistake - don't know how to remove
