One of my agency clerks tried to send a man to Lisbon by mistake, he had a very broad Northen Ireland accent and actually was enquiring about getting to Lisburn.
Another clerk carelessly put 'LOS' instead of 'LAX' in the fare construction part of a handwritten ticket (remember those!) and I arranged for one of my mates to call her pretending to be from BOAC as it was then, and that the passenger had ended up in Lagos instead of Los Angeles (not sure which of the two places is worse!)