InfoPath Dev

Am using SharePoint 2013 with InfoPath form. I would like to use Name/pc:Person field/control to retrieve the form user's office or location. I am already use that field/control for user to enter their NT logon and retrieve name via Active Directory. So far cannot find a good explanation/instructions to realize the user's office or location. Would appreciate your help--thanks.

 Add a data connection to the User Profile web service. Set the query field to the account ID in your people picker. Run the query. Find the office / location field in the returned data (this will vary according to your user profile info) and set the location field to that. Here is a good tutorial on getting user profile info.