If you have already scheduled an interview:
Text "Change" to the phone number you've been chatting with to bring up options related to your interview:
Select option 3 to "Cancel & Withdraw." This will cancel your current interview
Text "Restart" at any point, which will bring up the following options:
Select option 1, after which you will be placed at the beginning of the application process. Continue forward to choose a new location/job and complete your application
If you have not yet scheduled an interview:
Text "Restart" at any point, followed by option 1 to restart your application from the beginning. Choose a new location/job and complete your application.