I did not use flight from San Francisco to Fukuoka. United Airline cancelled Fukuoka flight and did not accept me in the next flight due to the delayed flight prior to that even if the next flight was standing by the boarding gate more than an hour. United Airline offered me next day flight but I could not kill the time like that for the event I planned in Fukuoka. I did not use the service at all, so I requested refund. I bought another ticket.