Turning in Wednesday's Homework

The code isn't the most elegant. At the very end of the program I should probably turn finding the index of the each set of stops into a method, but I don't think I could store them the way I did in an array if I tried to do that. The bigger issue though is that the code requires perfection on the part of the user to run correctly. I probably should have done something like changing all user input into lower case letters only and then making checks, but I've spent a lot of time on this as is and I need some sleep badly. Sorry. Any feedback you can give me would be greatly appreciated. Thank you.
- Avi