My flight had a last-minute problem, which the United Airlines Frankfurt Office workers promptly and professionally resolved. The agent helped me with a hotel voucher while I awaited my next flight and gave me a thorough explanation of my rebooking alternatives. Despite a line of irate passengers, I was impressed by their ability to remain composed and helpful. There were short wait times and the office was conveniently located in the terminal. I've worked with other airline offices throughout Europe, so this was a welcome change. If you require immediate assistance for your United travel, I would strongly advise going to the Frankfurt office.