Any idea as to what is going on with KOA - SFO and SFO - KOA non-stops on Friday, March 27 only? Three non-stops show up on the United Timetable but none show up as being able to purchase a ticket. Non-stops showing up on March 26 and March 28 forward. IT issue or blocking flight for existing reservations changing to get out of town? I have a friend who has reservations on one of the flights on March 27 and he is curious. Thanks.