Hey there, Jessica!
Welcome to planDisney! Thanks for stopping by with a question!
I’m sorry to hear that your mom won’t be able to make it on your trip to “The Happiest Place on Earth!”! Don’t forget to bring her back a souvenir. May I suggest the 20th anniversary Haunted Mansion Holiday
Jack Skellington sipper? It’s available at French Market and Harbour Gallery in
Disneyland Park this week only (now through July 18.) It’s a fun limited-time souvenir that she’ll love!
I am happy to report that you do not have to change the name on her unused ticket for your sister to use it. That’s because upon arrival a Cast Member will take a picture of the person using each
ticket. From then on the ticket is associated with the person in the picture, not the name on the ticket. So feel free to bring your sister instead of your mom. I hope you have a wonderful time!
Head back to planDisney with your future questions!
Tiffanie