Hey there, Zachary!
Thanks for bringing your question to planDisney!
It's great to see that you are looking into making theme park reservations to visit
Disneyland Park and
Disney California Adventure Park.
When you make theme park reservations using the
Theme Park Reservations system, it's important to know that the system provides features for making reservations and that reservations can't be modified. If you have a need to change a reservation, you would need to cancel your existing reservation and make a new reservation.
You can cancel a theme park reservation through the
My Theme Park Reservations feature. You could then book a new theme park reservation using the Theme Park Reservations system.
Before you look to cancel your existing theme park reservation and book a new reservation, you'll want to check out the
Theme Park Reservation Availability calendar to make sure that the theme parks have reservations available for the days you wish to visit.
Zachary, here's hoping you get all your reservations set up as you wish to enjoy all the magic of
Disneyland Resort!
Jerry