I know they don't assign seats when you purchase your tickets but since I am taking 5 children around ages 10-11 and 3 of them have never flow, how do we get seats together? Do you get seats assigned when you check in at the airport? It's not just one big cattle call to board the plane and everyone runs to get a seat is it? Any help would be appreciated. I'd really be saving a lot of money by traveling Southeast vs. the other airlines. Thanks.