This might seem a bit odd, but we need to book some flights to Australia. We will credit the miles to our Qantas accounts because we have Silver status and this will help us requalify. Our issue is we have an outstanding credit with American Airlines that we would like to use towards these tickets as it will expire in the near future. So my thinking was we could book the Qantas flights using the American codeshare and ask them to put in our Qantas frequent flyer numbers rather than the American FF #. This is important because I believe our Qantas status would allow us to choose seats at time of booking. Would the booking show under my Qantas reservations in my Qantas FF account allowing me to choose my seat? Basically what I am looking for is confirmation that my actions are going to lead to the result I want, ie. being able to reserve my seats or is it all going to end in tears?