Just a word of caution.... always take a step back and think "should I be giving out this information to someone I don't know".
Perhaps this is a genuine enquiry to kick-start a previous relationship....
.... but perhaps it's the (ex)husband trying to track her down .... battered wife scenario ????
... or perhaps it's a debt recovery agency trying to enforce a court order ???
If someone does know, I'd suggest they ask R2-D2 for his contact details, and then pass HIS details to the lady concerned.
Then she can make the judgement as to whether she contacts him.
Better safe than sorry.
