Hi there Elaine,
Thank you for taking the time to reach out to us here at planDisney with your question, we are so happy you stopped by! It looks like you are planning a magical 50th Birthday celebration, I can't think of a better place to celebrate your milestone birthday than with Mickey and his friends at Disneyland Resort!
Advanced Dining Reservations are available up to 60 days in advance and do tend to fill up quickly. However, after a quick search, it looks like there are still some reservations available for your preferred date of August 31. I would strongly recommend making your Advanced Dining Reservation as soon as possible to ensure you are able to dine at
Blue Bayou Restaurant, as this location is very popular. Sometimes I need to logout of my Disney Account and log back in for new reservations to appear, so hopefully you will have better luck when you try again.
If by chance you cannot find a reservation, keep checking. Guests change plans and cancel reservation, so more may become available leading up to your visit. Also, if by the time you visit Disneyland Resort, you have not yet secured a Dining Reservation, head to Blue Bayou Restaurant when you arrive at Disneyland Resort, they may have a Same-Day Walk Up reservation for you. While not guaranteed, most Restaurants do have a limited number of Same-Day Reservations based on capacity.
I hope you have a magical time celebrating your Birthday at the Happiest Place on Earth, Elaine. If you have any other questions as you continue to plan, please come back to
planDisney. We are always happy to help.
~Stephanie