Create a subclass for Guests that has the User as a parent
Constructor should have first and last name as properties
Guests should be able to do the following:
[ ] calculate what they've spent overall (could be put into User class to since Manager is similar)
[ ] see how much they've spent overall (could also be adapted to User)
[ ] book a room on a given datem (also the User? Spec doesn't say manager can book but it should stand to reason that they can...)
Create a subclass for Guests that has the User as a parent Constructor should have first and last name as properties Guests should be able to do the following: