Hi again,
actually rozy's system would work with me, because what I want is to make sure I'll have a seat on the flight, with the less miles spent as possible
So, if I was sure they wouldn't cancel my reservation for delay in faxing them, it would be the perfect solution to wait until i could check for flysmart availability. But I'm not sure it works this way here, so I'll investigate. Thanks anyway for your tips!
Pedro