Hi, Janell! Welcome to 
planDisney.
It is exciting to hear that you have 
Theme Park Tickets and will be visiting the 
Disneyland Resort soon.
Regarding your question, although there is no penalty for an unused 
Theme Park Reservation, it is best to cancel in advance so that other guests can make a reservation. You can make new reservations by visiting the 
My Theme Park Reservations webpage and clicking on the "Book Theme Park Reservations" button. I recommend looking at the 
Availability Calendar to see current reservation availability. 
When you do visit 
Disneyland Park, I highly recommend making time in your day to watch the 
"Magic Happens" Parade. You will absolutely love the music, characters, and uplifting message of the show. There are typically two shows each day. You can check showtimes on the 
Disneyland Mobile App.
Janell, I hope this information is helpful to you. If you have any more questions, please come back and see us--you know where to find us!
Your Pal,
Alejandra