<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by ExMo:
As for buying the ticket and then not using it, that won't work. The rest of your itinerary would be cancelled based on your no show for the Asia-Europe segment.</font>
I disagree with that. Get the ticket issued entirely open dated (except the first segment, which has to be specified) then make your reservations on as many separate PNRs as you wish. Throwing away one segment of the ticket is no problem at all.