We are planning to attempt to book five business class tickets from London to Hawaii for a special family holiday next year. Whilst I appreciate this will be difficult, American Airlines (London) have said it maybe possible as we can give them a big window when we wish to travel. I will be transferring points from my Marriott rewards account using several hotel/FF packages. However, I do not want to transfer the miles and find I cannot obtain the booking. AA will hold any bookings made for 14 days; how long does it take Marriott to transfer the miles or can I pay for a quick transfer.