Hi! I just wanted to update this thread to mention that we finally did receive our red American Tourister carry-on bag that we left in the overhead compartment of our Turkish Airlines flight to Istanbul. Thank you so much @rozy for making it happen. We would never have gotten our bag back without your help in retrieving it from the Lost & Found Office and then posting it over to us here in London! Your kindness and cooperation in helping us and other like us is greatly appreciated!