Just reporting the "official" position... assuming two different airlines (& tkts) are involved... which I verified B/4 posting ... and double checked again just now.

As U may know, the airport agents are "god" - and what may actually occur is another matter. Remember, two separate tkts. In the wake of Lockerbee, this is "technically" a no,no.

I'll probably get more flack on this one!

Cheers.