Join Date: Jun 2004
Location: SCL, MCT, LGW and a variety of 1W lounges in between.
Programs: BA Mucci (Seigneur et Ingenieur des Appareils Volants (Gold)), QF (WP and LTG), AA EXP, GF Gold
Posts: 3,931
Ok
Well in short it means:
NO, the trip you wanted is not available at this fare, try upgrading to full J.
Seriously, you are looking for
Jaws: single/double/open etc
Circle and round trip
Fare combination point
Differential fare construction
MPM
HIF
I will work at it shortly.