I had a really unpleasant experience with Kayak.com. Booked a FLY ticket, NEED to reschedule and... there was nobody to help me. It is useless to talk with their agents at all. They do not care about anything. When I asked to connect me with the Manager - here is the same story - I was waiting the manager for more than 15 minutes and finally was told that he is busy and he would give me a call back later. Guess what! Nobody called. I call myself a stubborn person. I honestly tried for two weeks! But the Manager is always busy and NEVER called back! I do not trust KAYAK.COM at all. And you will also loose your time and money with them. I checked it personally! I strongly recommend Never Deal with them.