Hey there, April! Thanks so much for stopping by planDisney for help.
April, the Cast Members at the main entrance ticket booth are accessing the same,
central reservation system that we access from home, so I would keep checking frequently as you are correct that if another Guest cancels a reservation, it is released back into the system for someone else to grab! I have noticed that especially within one to two days of my visit, reservations can become available. I can see
October 20 available now, but it may change very quickly. Just keep refreshing the
calendar and hopefully you will get lucky! You can also check at the main entrance when you arrive, but just know that you can also be checking from home and accessing the same
reservation calendar.
Sending you a pinch of pixie dust for good luck, April! I hope you can secure that reservation as the magic is waiting for you.
Kamini