Miamimike....you are better off if you do not see her again. The Swiss girl you saw on vacation is very different than the Swiss girl you will meet in Switzerland. Once back in familiar surroundings, Swiss who return from vacation are a rather nasty, cold bunch.
Actually, one idea would be, to use the name Claudia, and look thru available pictures on Facebook with that name (Claudia, Switzerland). Yes I know that might take hours to do, and she might not even have a FB account.
I guess the more likely and better alternative is to go to a non Swiss forum, and ask english speakers if they know a Claudia in a country where they are more likely to know someone named Paddy or Mike.
This is not such a crazy question. I was in Savannah, GA, and this lady asked me (once she discovered I live in Switzerland) if I know the prince of Austria.
Given the fact that Austria is a republic, I'm wondering just how old she might be.
I'm sure she may have voted Romney this week. If she is still with us. Or it.
Get an alphorn, dawn traditional clothing like the picture below, go on top of the Jungfrau, play a tune on the alphorn and cry out "Claudia" and she will come running.