Originally Posted by
Franklin7777
I would argue the description posted here is not a duplicate booking. While it would be difficult, it is certainly not physically impossible for the poster to fly both these flights. If this is considered a duplicate booking, then what the heck is SW's definition of a duplicate booking?
It is very likely the case that there is no way for the poster to fly BOS-Cali, then get back to MHT *On Southwest* to fly MHT-Cali the next day (the last connections to MHT from the west coast leave around 2 pm). I can't imagine their system accounts for the possibility of you having reservations on other carriers when locating and flagging "impossible" bookings.