Differentiating Affected End User

Differentiating Affected End User

Is there a way to have Requester and "affected End User" information populated on templates?  We would want the information to auto-populate from Active Directory for Requesters and Affected End Users.  We have groups which enter tickets for other users.  I have been testing, but I have not been able to get it to work.  I am not able to User ID (sAMAccountName) to the form.  If I create a special field in the Service Catalog area, it just shows up as the default value that I entered.  I was able to sync to AD and add the field for the user's CI information.  Is it possible to add these fields for a requester and a secondary user?  

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