---Going Down
Don't worry about putting off your second interview. While Cathay want to know that you are seriously interested in working for them, they will also understand if you have good reasons (family or present job constraints) for asking for another date. The are generally pretty fair about delays. Ultimately, they want you to be at your best for the second interview. It's tough.
I put off my second interview 5 times! I had a good reason each time, so they kept calling to offer later dates. I took the 6th offer and I ended being successful. The rest as they say is history...
Good luck!
BTW, nice handle...