If I could give this service zero stars I would. You get a booking number and that's IT. The airline doesn't contact you to check in the day before, so you have to remember to do it yourself, and then you will realize that you were NEVER sent a confirmation number, only a booking number. You will enter your booking number because, hey, that's all you were given, and then told that this number doesn't work. You then will have to call the airline, give them all your information, and they will give you the confirmation number. And if you have to add a pet, as I did, it will not reflect in your reservation until you are at the airport, sweating, hoping you can get your pet on board. This site is AWFUL.