Booking.com is the worse site to book a flight and their customer service is terrible!!!! I was looking a flight to CA and everything seemed going well until I hit the booking key. A message came out saying there is not more seats with this price. So I started the process again but before I booked the flight with the same exact price, time and destination, I decide to look in my bank account to see if I was charged and yes they took the money out of my account for the first flight that was not booked according to them. I contacted the customer service by email because they didn't have customer service phone number. I gave them all the information and they sent me a number to call. I called 3 times and I could NOT, for the life of me, get through to anyone because I didn't have confirmation number. I have spent so far 1.5 hr to resolve this and I am out of money and out of ticket. Stay away from this website... it is terrible!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!