Assign Technician that replies to requests

Assign Technician that replies to requests

In our usecase, Users enter a ticket by submitting an email to the email address assigned to ServiceDesk Plus.

We have two technicians that are notified that a new ticket has been entered.  When Technician A responds to the email, it appends the ticket with their response.  

I would like to configure SDP to assign the ticket to the responding technician. I have tried to configure this with business rules and auto-assign.  Is there a trigger I can configure?

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