I decided at the very last minute that I was going to book a trip from San Francisco to New York. I cross-checked all the major travel sites: Kayak, Orbitz, Hopper, CheapOAir etc and JustFly had the best price for the itinerary that worked with my schedule. The only reason I am taking off one star is that the first time I clicked to buy the ticket I got a message that said my request couldn't be processed and to try again. I went through the whole check-out process a second time and when I clicked to buy the ticket a warning popped up that said I already had a reservation for that flight. I'm glad that the warning popped up and I didn't accidentally buy 2 tickets but it was somewhat disconcerting that the site said the reservation didn't go through and then later said that it did.