Hello,
I have a US passport and was wondering whether I qualify for a 144 hour transit visa in Beijing. Here's my itinerary:

8/31/2018 @ 13:30: BOS > NRT
9/6/2018 @ 16:50, land at 19:45: HND > PEK
9/9/2018 @ 16:25: PEK > DFW
9/9/2018 @ 20:20: DFW > BOS

I think so since the trip is under 72 hours and arrives from a different country than I'll depart for. Is that correct? I just wanted to make sure, since my destination after Beijing is my home country.

Thanks