Hi Diana!
Welcome to the Disney Parks Moms Panel! Your daughter is going to have an unforgettable birthday while visiting Walt Disney World Resort. My family loves to celebrate special occasions at Walt Disney World Resort. Over the years we've made so many memories with Mickey and his friends while celebrating birthdays, anniversaries, retirements and everything in-between!
Your daughter has chosen two magical restaurants to eat at on her birthday. I'm so sorry neither
Be Our Guest Restaurant nor
Cinderella's Royal Table have availability, yet, on her special day. To answer your question: yes! There is still hope for getting an Advanced Dining Reservation! My advice to you is to keep checking every day for openings. Guests often change their plans resulting in reservations becoming available!
Diana, be sure to stop by Guest Relations at any of Disney's four Theme Parks or your Walt Disney World Resort hotel to pick up a Birthday Button for your daughter to wear throughout her trip. She will be treated like the princess that she is by Cast Members and Guests wishing her the happiest of birthdays!
I'm sending you pixie dust and good wishes for getting the reservation of your daughter's dreams on her birthday!
Beth