Static locations

Static locations:
As of now, users can book vehicles from predefined locations only. Destinations are also predefined.

Expected output:
Users should be able to book vehicles with their choice of pickup and drop locations instead of being limited by the program.
Needs dynamic input of pick up and drop locations. Distance (in kms) can be entered by the user manually and bill is calculated accordingly.

Optional:
Think of a way to avoid the user entering the distance manually. The program should take care of distance and bill calculation.

Potential bounty points that can be earned:
Bounty points (apply to all successful PR submissions): 50