Let's say I have added two custom profile properties for my members, Office and Account

Let's say another logged in user , a manager, can select these combined properties from a drop down list in order to retrieve additional basic info about employees. The Office and Account combination is what makes each User unique.

How do I retrieve the UserID of the selected Office/Account (what table, what query). I am having trouble with this because the combination of the Office/Account is what makes the selected UserID unique, so I have to find the ID from BOTH Office and Account.

When I look at the UserProfile table, since each row has only one property for the UserID, albeit multiple rows for each UserID, I get confused on how to retrive the data I need.

Any specific suggestions?