Just looking at the Princess website, it says "With Dine My Way:
Customize your dining time for each day, once you've made the final payment for your booking.
Select from the main dining room, specialty dining venues or both. If you've already booked and paid for specialty dining, you'll manage those reservations there too."
I have not made the final payment but went to the Princess app and made our dining reservations. Can I or can't I make dining reservations now for a cruise in October? If not, why did it let me?