Create multiple heads in one DB head

This is the Ask Task page. The data from all the drop downs comes from the DB.
Now when we Assign the Task, by the normal logic the DB is made. Assigned client, Assigned Task, Employee 1, Employee 2.

But the problem is that it will create client multiple times for every task assigned. While we wan’t all the work assigned for one client under one head in the DB.
How is that possible?