The staff at LAS is the only reason why I’ve given a positive feedback. A day prior to my flight I received an email stating my daughter who is a minor had a system seating changed from 29 C to 36 D. Spoke to a supervisor name Chris over the phone who was cold and not helpful at all. The day of my flight after begging for a while we were able to seat next to our daughter. This put a cloud on the last day of our vacation. But the staff on board were very accommodating.