How to customize CRM for date ranges (hotel room blocks)

I work for a meeting planning company. We are the 3rd party that contracts nightly hotel rooms between our clients and the chosen hotel. We record each client's set of hotel rooms as a Potential.

We need a way to enter each Potential's unique arrival date and departure date followed by the subsequent unqiue:

1. nightly # of hotel rooms

2. days of the week

3. dates

4. room type(s)

5. room rate(s)

How can I best record the unique set of requirements per Potential when each Potential is different (diff number of rooms, different # of room types, different rates, etc)? A open text box isnt a good solution. Can additional fields be triggered with a workflow??? Maybe use activities somehow given that they have date associations??

Thanks for any ideas!