Hi Chari!
Thank you for visiting the Moms Panel!
As all the princess dining experiences are fully booked, how about
The Crystal Palace, at Magic Kingdom, where your daughter can dine with Pooh and friends? Or
Chef Mickey's, located at Disney's Contemporary Resort (you can walk from the Magic Kingdom, or take the monorail straight into this resort). Chef Mickey's is a fun, lively experience which I am sure your five-year-old princess would enjoy.
I would also recommend that you keep checking for availability at your other dining choices, as cancellations do occur. If you check
online, it is quicker than phoning each day.
If you have any other questions, please come back and ask me - I would be happy to help you plan your magical vacation!