And to round it off, the text the carrier "SHALL LIMIT THE NUMBER OF PASSENGERS CARRIED ON ANY ONE FLIGHT AT FARES GOVERNED BY THIS RULE AND SUCH FARES WILL NOT NECESSARILY BE AVAILABLE ON ALL FLIGHTS. THE NUMBER OF SEATS, WHICH THE CARRIER SHALL MAKE AVAILABLE ON A GIVEN FLIGHT, WILL BE DETERMINED BY THE CARRIERS BEST JUDGEMENT." has nothing at all to do with limiting rebooking's, it refers to the public availability in the GDS. As its been clarified, the flights do have seats on the journey. This text merely means there will not be 100 seats in A class.