Creating a ticket on behalf of a requestor?

Is there anyway to determine whether a ticket was opened by a logged in
user on behalf of someone else and have that notated in the template

For example, I login and select “New ticket in… support”. In the
"Create a new ticket" screen that comes up I modify the requestor to be
the username assigned to a customer. I’d like the top of the
Correspondence output to say something to the effect of:

(Ticket created by jrichard on behalf of )


Josh Richards <jrichard@{,, }>
Digital West Networks, Inc. - "Making Internet Business Better"
San Luis Obispo, CA - URL: - ASN 14589