Dear Phil Collin,
Thanks for contacting
Top China Travel!
I am sorry to tell you that we do not offer visa service right now. I sugget you friend to apply visa by himself/herself. If he/she is working in Shenzhen, the nearest USA Consulate General is in Guangzhou. You can visit
USA Embassy in China to find more contact details.
As for flight to Logan airport in Boston, MA, USA, we also suggest your friend to book it by himself/herself, as we usually can not get a good discount for international flights. If you would like us to quote for the international flihgt, could you please tell us for which date? And how many tickets would you need? Direct flihgt to Boston, MA, USA is only availble in Beijing International Airport. If your friend choose to departure from the nearest cities to Shenzhen, like Guangzhou or Hong Kong, he or she will need do the transit. What do you think of that?
Any further request or question, please feel free to contact with us.