Hi all -- I'd like to book a round trip intl flight where the outbound leg is business class and the return leg is economy class. Are there any sites that allow such searches? I had no luck with the usual suspects.

Specifically, my trip is June 5 NYC-HKG and June 18 SHA-LAX. I'd love to take the non-stops on Cathay Pacific and China Eastern. But biz-fare is just outside my company's budget, hence my question.

Many thanks, folks.