Any Chinese speaking travel/tour agency in Knoxville, TN?

I have a visitor coming from China and try to find a local tour guide for a day.

Does this matter much when you find a Chinese agency for travel/tour?

I am kind of curious what kind of words when the travelers search for a travel agency.Is there big differentce between Chinese/china travel agency,Chinese/china tour,chinese/china tours? Which one you would likely to search with ? Thanks for any thought.