Welcome Shannon, thanks for visiting us at the Disney Parks Moms Panel.
California Grill is one of my favorite restaurants at the
Walt Disney World Resort. I am sorry you didn’t get a reservation for the night you desire, but I have good news.
Seating at California Grill Lounge is first-come, first-served; reservations are not accepted. They offer the same menu as the restaurant and you can enjoy Wishes Nighttime Spectacular from there too.
I suggest you check back for availability a couple days before your visit. Those people who need to cancel their reservation will do it between 48 to 24 hours in advance to avoid cancelation fees. I also encourage you to call dining reservations for checking, they will have updated information to assist you. Good luck!
Hope this helps your planning. Come back to visit us soon.
Wishing you a magical day!
Gina V.