Hi folks, some advice needed please. I'm looking to use some AVIOS and an Amex companion voucher to book a trip to Hong Kong in First. My plan was to go out on BA and return on Cathay. On previous searches, admittedly some time ago, the BA website was giving me this option, but searching today the system is only bringing up BA flights. Has something changed? Is there another way to book Cathay award flights? Thanks in advance.