Hi, Chelsea!
I booked a table of 8 for
Be Our Guest Restaurant on the exact morning that reservations opened up and got my first choice, time-wise. You can do it, Chelsea!
On the morning of 5/13, get on your computer AND make a call to (407) WDW-DINE to secure your dinner reservation. You'll be able to try for your first choice date and, if that's not available, continue on with the request for your next choices. Just be SURE to call or go online that very first day that you can request a reservation, Chelsea, and I'm sure that you'll have good luck securing a great reservation at Be Our Guest Restaurant.
Incidentally, I recently dined there for both a Quick Service lunch AND a Table Service dinner (on the same day, might I add...) and loved them both. The menus are vastly different, and the experience is as well. You might want a chance to dine there twice during your stay, too, Chelsea, so get a TS reservation and consider sneaking in a QS at some point as well. You'll love them BOTH!
Send more questions as you think of them, Chelsea; we love to help!