How to notify the test owner of the next test case in a test set

Hello,

My client wants to organize their tests around tests sets that has to be executed by multiple operators.

For instance, let's say we have a test set  containing 6 test cases. The first two has to be executed by the person who receives the delivery, the next two test has to be executed by the person who encode the package in the system and the last two has to be executed by a SAP manager.

My client wants an automatic system where when the delivery guy finishes his two tests, an email is automatically sent to the package encoder so that he knows that he can know execute his tests.

Is it possible to do something like that in SpiraTest?

Thank you for help