I recently purchased a ticket on Orbitz from CLT to BKK. I will take USAir to JFK and change to Asiana. This is on one itinerary. I have researched how to get from one terminal to the Asiana terminal. My question is what happens if the USAir flight is delayed and I miss the connecting flight due to the delay. Do I need to deal with USAir, Asiana, or Orbitz? Thanks.