Hi Michael,
Welcome to planDisney and thank you for your question!
It’s great to hear that your family already has a dining reservation in place. Unfortunately, you cannot unselect yourself from the dining party within the
My Disney Experience mobile app. You can update your guest list, but you can’t take yourself off of the reservation. Also, in my experience, you won’t be able to hold two dining reservations at the same time.
My suggestion would be to go with your guests to the restaurant so you can check them in. Once they are seated, depending on where the restaurant is, you and your wife could go to another restaurant and see if it has walk-up availability. Some restaurants have last minute availability to accept guests and since it will only be you and your wife, you might have a chance! You’d just go up to the Cast Member, ask if they have availability, and if they say yes, you’ll wait a period of time for your table.
A second option could be to set up another dining reservation for just you and your wife at another point during the day. However, you’ll want to make sure it isn’t within an hour or so of your family’s first reservation.
I hope this “Bit By Bryanna” is helpful as you prepare for your Walt Disney World Vacation.
If you have any other planning or vacation questions, please feel free to reach out, I’m always happy to help!
The Magic Is Calling,
Bryanna