Hi, just looking at booking a flight from Luton to Paris for 2 adults and 2 children. If I choose not to pay extra for a numbered seat and instead go for the "random" allocation when checking in, how does it work? Will they reserve 2 sets of 2 seats making sure there is an adult with each child? Also, will they fill the aircraft from the front backwards, or the other way round? One last question, is there no way you can negotiate a seat allocation from what's left when checking in at the desk?