Do I need a password to make an appointment for a group photo?

Generally, you don't need to provide a password to make an appointment for a group purchase, such as a restaurant, because once the password is provided, it means that it has been used, and even if you want to return these two tickets, you can't return them in the future. However, I have never encountered such a situation with you. I suggest not giving it for the time being. If you really don't want to refund your ticket, you must make a reservation before May 30th. If you want the password, you have to give it, because it will expire after May 30th.