Groupwise 8.0.2

Our laptops are setup as resources and their reservations are done using the Groupwise appointment feature. For an example, let's say someone has a laptop reserved for 1 night (checking it out on Thursday and returning it on Friday). We have a problem in that people don't return the laptops when they are supposed to. Is there a way for Groupwise to automatically send a reminder email message to the person (in this example, it would be sent on Friday) that they are supposed to return it?