Am I qualified for 72 hour Visa-Free Transit Between September 3 and September 5 and between September 13 and 15?

I'm flying into Shanghai September 3rd With American airlines from New York City. September 5th, I fly to Bangkok with Cathay Pacific and return to Shanghai September 13. I fly out of Shanghai September 15 to Los Angeles. I will be staying at the hotel and I am an American citizen holding an American passport.