Flight Planner - Feedback welcome!

I created a pretty basic flight planner for fictional ‘Python Air’.

Users enter how many passengers, where they are departing from (6 locations) and where they want to go (same 6 locations). They can also upgrade to First or Business Class, and check bags (for a fee).

At the end all charges and fees are calculated and the user gets a little synopsis of where they are going and a breakdown of any fees.

There is still much refactoring to be done, but it works!