I will be going to from Dallas, Tx to Europe for 2 weeks June 2013. I plan to fly into Rome for 4 days 3 nights then up to Geneva, Switzerland. I plan to spend 11 days going east across Switzerland and Austria seeing the Alps. I can buy round trip tickets on expedia or kayak but can't figure out how to book an open jaw round trip where I could fly home from Vienna. Is there some trick I don't know to doing it on Expedia or Kayak, or do I have to go to a travel agent?