A task can be assigned to any users when creating a new task, Management Portal, CRM>Tasks> + New task, fill out the task details and save.

 

A task can also be re-assigned once it has been created. Management Portal dashboard, CRM>Tasks>Checkbox next to job you would like to re-assign>Select Action>Assign. Just above the Select Action tab you will be able to select the user that you want the task to be assigned to.