According to the Disneyworld website "If you have not yet used a ticket, you may transfer it to another person.". You can reassign the ticket by going to My Reservations on your
MDE account and select "reassign ticket" and choose someone from your Family and Friends list. Make sure they have an active magic band. You may be able to modify your hotel reservation too by selecting "modify reservation" on your MDE account. If not, you can call 407-934-7639. Again, while I have not personally done this, I did find the info on the Disneyworld website under FAQ tickets and FAQ hotel reservations. Maybe someone that has had experience with this can verify this is correct. As far as the party ticket, I don't believe it has a name attached. It only specifies if it's an adult or child.