Terrible problem scheduling seating, additional problem charging for baggage(checked or carry-on). Emails say one thing ticket counter says otherwise.(left hand, right hand situation neither knows what other is doing! FRUSTRATING, it must be in app, one person can't make all mistakes we've encountered. I could go on for paragraphs. Booked online using confirmation number, had downloaded tickets, hour later to use at Gate, recieved this message! "Oops, sorry, something went wrong, now start over?