I have flown numerous times, but always checked in luggage. My husband will be flying in on a different day to meet us and will have no checked luggage, just a carry-on - if that. I have no idea how to do this! We usually check our luggage at PIT at the outdoor desk and away we go. Does he take his information and stand in line at the Southwest counter before going through security? I feel like a real ding dong. TIA