Where can I go to find out some tips on making MFU bookings on BA.com? Most of the time, the function won't work. I type in an itinerary to search for and most of the time (for the last 2 months!) I get a message saying "our systems aren't responding, please try back later". Does your ability to get a booking depend on your status level with BA? I've been trying to search from anywhere in the interior of the U.S. to LHR in June.