Hi there Hikari, and welcome to planDisney! Thanks for stopping by with your question.
Theme park reservations are available to book typically about six months out from the current date. You can check the
Theme Park Reservation Availability Calendar to see what's available and how far out you're able to book. Conversely, if you want to make or manage an existing theme park reservation then my preferred place to do that is on the
My Plans page of the Disneyland Resort website.
Currently, to visit the parks of the Disneyland Resort, you need both valid
theme park tickets and a
theme park reservation for each day you plan to visit. If you want some added flexibility for your visit, then I'd highly recommend also purchasing the
Park Hopper option so you can hop back and forth between Disneyland Park and Disney California Adventure Park each day of your visit.
If you're still running into issues, you can always reach out to a Cast Member at the Tickets line for additional assistance. They'll be able to see the specific details of your situation and help you out with making park reservations.
Thanks again for your question, Hikari! Come back and see us as you continue to plan your visit - we'd love to help as you continue to plan.
Have a Magical Day,
Greg