Hi Denise, welcome to planDisney!
Thanks for bringing your question to us, I'm happy to help!
First and foremost, you would need to check the
Theme Park Reservation Availability Calendar to see if there is availability on the day and park you wish to attend. I just checked the calendar, and
1 Park Per Day Tickets have no reservations available on September 11, 2022. However,
Park Hopper Tickets do have reservations available for
Disney California Adventure Park on September 11, 2022.
If your current ticket is a Park Hopper Ticket, you can easily make the reservation change yourself. I'm happy to walk you through the process! First, you'll need to cancel your current reservation. To do this, you'll need to log in to your
Disneyland Resort account, select the "My Disneyland" link, and then click the "Ticket and Reservation Details" link. Select the reservation you wish to cancel and click "Cancel Reservation". You'll then be able to select the party members who need to cancel. Once canceled, you're free to go ahead and book your new reservation! Just head back to the "Ticket and Reservation Details" link and select the "Make Park Reservations" link.
However, if your current ticket is a 1 Day Park Per Day Ticket, you will need to upgrade to a Park Hopper ticket first, then you can book your new reservation. The best way to do this is to keep your current reservation for September 10, 2022, and stop by the Disneyland Resort Main Entrance Ticket Booths. Let the Cast Members there know about your current reservation, and that you would like to upgrade your tickets to a Park Hopper Ticket and book a new reservation for September 11, 2022. If it's hard for you to visit the Main Entrance Ticket Booths, you can also try calling the
Disneyland Resort Ticket Line at 714-781-4636 and see if they can help you there!
If you have any other questions at all, please visit us again!
See ya real soon!
Jin