Just a warning, you'll probably not get the easy answer you are looking for here at the Monastery. We like people to help themselves, with an occasional nudge from the good Monks that populate these halls. We don't do homework.

The defacto question at this point is to ask you to show us what you have done. Where's your code so far? What CPAN modules have you looked at? How experienced of a Perl programmer are you?

Your application sounds like it could be very intense and require loads of code, tapping CRUD methods and then date and time modules. I'd suggest you flow chart this thing out and then ask very specific questions.