Allocating task at runtime

Hello

I'm new on Bonita, and i have the following issue:

My organization is a college, with various courses. Each course has a coordinator. There's a group "Coordinator" in my organization groups, that contains all coordinators users.

The starter of the process is a student, who fulfills a request. In the form, there's a boolean variable used to inform the student's course (for example Computer Science, Information Systems, etc), and the request must reach to the coordinator of the student's course, informed by the boolean variable. The request reaches to the student's course coordinator, who has a task to review the request, and approve or disapprove.

The problem is: Every coordinator is allocated to the "Coordinator" group. If any coordinator log in the system, he will receive the student's request. i need only the student's coordinator receive the request, not all of them.

There's any way to solve this by the organization manager, or I need to make a connector? Suggestions? Thanks! :)

PS: If i need to do it by a connector, what I need to do?