How does the packages work?

How does the packages work on the front end? I cant seem to find examples on what my clients see when using the package I have set up. I teach yoga class and am offering a discount with 4 classes. When they purchase a package do they schedule the classes on the spot or do they create an account and schedule as they want to? Im wanting to implement this next month and would like to know what my clients will be expecting to see.

Thank you