human
I'm thinking about taking a vacation. What are some good places to visit in the United States?
assistant
1. New York City, NY 
2. Las Vegas, NV 
3. San Francisco, CA 
4. Miami, FL 
5. Washington D.C. 
6. Chicago, IL 
7. Los Angeles, CA 
8. Yellowstone National Park 
9. Yosemite National Park 
10. Grand Canyon National Park