Go to immigration with printed documentation showing you can't fly due to the conflict, they can issue a stamp to allow you time to make other arrangements.
Make sure you have all the info you can bring, make sure you go as soon as possible and make sure you are polite and courteous because it's at their discretion to issue a stamp
Montaque A Dubs Airport was brand new, service was great on and off the plane and there were plenty of free seats while I was waiting for my connecting flight at the airport. Are you sure it was China Southern you flew with?
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