Last Oct. 10, my wife, a friend and I arrived at Washington Dulles International Airport to fly to Paris on a trip we had originally planned for April but had to postpone. At the United Airlines check-in counter, agents told us our reservation had been canceled — by us! Even weirder, the same thing had happened three weeks earlier, when the airline sent us an email saying we had canceled our trip. That time, we called and insisted United reissue the reservation for the same price, which it did by giving us a travel voucher and instantly redeeming it. At the airport, though, we watched as supervisors got their supervisors involved, and we were eventually told that something about the voucher had raised questions about fraud. We missed our flight and bought last-minute tickets for that evening’s 11 p.m. United flight to Paris. Then flight was canceled, though this time for everyone. Given the day’s stress and frustration, we gave up on the trip, had dinner and went to the airport Marriott before heading home the next morning. We believe United owes us for the cost of the last-minute flight ($4,475), a portion of the earlier canceled flight ($3,099), the cost of our transportation, hotel and meals that day ($1,178) and the money we lost on nonrefundable plans in France ($2,007). Can you help?