Four of us flying to Vegas for several days. First flight for 3 peps. Never told about the size of the carry on bag until the night before. It was the size of a small back pack. Now you know we women can't fit three days worth of clothes and things in that. They wanted us to do a check in bag each. We were each prepared for a carry on bag. i was told to upgrade our tickets. That was 200.more each. I asked to speak to supervisor. After waiting 30 min, the clerk fixed our tickets so we could take the carry on back and not be charged. I call that service. Thank you.