You may modify your ticket up until June 22 at 11:59 PM (PT). After that date, the chaperone replacing you will need to stop by the Registration Help Desk during the event to ask for the ticket to be updated. They will need to give the order holder’s first and last name as well as the Order ID in order to request the name to be updated.
For instructions on updating the name on your ticket prior to the deadline, please see this page. We also encourage you to send this person the QR Code for the ticket so they can get through Registration as quickly as possible.