Thanks for the details.

Sorry I was not clear and it was misleading as LHR is at the same time a transit and a stopover. I wrote that quickly w/o thinking.

Anyway, that's what I understood before but hem somewhat forgot with all the paperwork and studying for others stops, right now I have only DXB as a stopover, LHR is just transit, however problems may arise that may force me to stay a couple of days in LHR from my way back to DXB.

Your remark about everything open (but the first) is however interesting, as of now all my itinerary is mostly setup with approximate dates in BA computers (I think that in a previous call someone asked me to set approximate dates) except starting from october 2003 where AA could not handle any reservations so she issued next tickets as open.