Purchase Reservations: How to?

[sbpressman]

I'm trying to figure out if there is a way for Peachtree to track item reservations. We import items which have limited quantities available. We may, for example, reserve 500 cases a year of item X. I'd like to be able to enter my reservation, then run a report which shows quantity reserved vs. quantity ordered and remaining quantity available for purchase.

Can't do it using Purchase Orders; that is for immediate orders, not reservations. Any ideas?