airline ticket booking

I am from Malaysia and I want to book your Eastern Airlines to fly from Shanghai Pudong Airport to Xiamen one way on the 24th August 2014 on MU 5563 departing at 16.15 from Shanghai. I try many times through your website booking but your booking site continue to me to log in my membership which I am not your member. Please help me immediately. I want to book a Business Class Ticket. I hope to get your reply soonest