Help vs Thanks

Today I met a man from Scotland at the railway station, which is also a subway station. He was asking to the crowds everyone loudly in Mandarin and English how to get to another railway station in the my city. I think he might must have been be in hurry, so I told him the way. He told me that he came to China to do trading trade in business of zips, and he was going to Yiwu tonight. He invited me for dinner to say thank you for thanks, but I am really not good at these things. So I declined him.

Help vs and Thanks

Today, I met a man from Scotland at the railway station, which is also a subway station. He was asking to the crowds around loudly in Mandarin and English in finding out how to get to another railway station in my city. I think he might be was in a hurry, and so I told him the way. He told me that he came to China to do trading business of in zippers. [although what you wrote is not wrong but "zipper" is clearer for US English because "zip" is the word used for Zonal Improvement Plan" as in zip codes] and he was going to Yiwu tonight. He invited me for dinner for to thanks, me for the help.  However, but I am really not good at these things. So I declined his offer him.

写得不錯 :)