Hi there, Crystal!
Thanks so much for stopping by the Disney Parks Moms Panel with your question. While I'm sorry that a member of your group won't be joining you at the Happiest Place on Earth, I know you will still have a magical and memorable visit.
If you have already booked a Disneyland Resort Hotel and will be one member short, I just advise you call and modify your reservation directly at (714) 781-4636. Similarly if you have made any dining reservations, you will want to call and modify the number of guests on your reservation by calling the
Disneyland Dining line at (714) 781-3463. You will only be charged if you no-show for your reservation or cancel within 24 hours. While
Disneyland Resort theme park tickets are nonrefundable, your friend or family member can still save and utilize their park ticket at a later date. Just check the back of your ticket to see its expiration. Current one-day tickets are valid now through December 30, 2020 and multi-day ticket must be used within 13 days of first use or by January 12, 2021, whichever comes first. I hope this helps!
Please return if you have any other questions, and have a magical day!
-Jennifer