meeting other people

Yesterday, when I was walking, saw some tourists, they was were walking in front of me and I wanted to talk with them. They was were 3 girls, so but they aren't weren't friendly I don't know why? One the girls told me ''I don't want your help'' 'cause even though I approached amicably, and only spoke with the other girl. She told me: "We're from the United States in Chicago. We're a students of the university students." She has is 22 years old, her name is Marissa, and she was a little sick but she was friendly and we talked for around 15 min, then so I went at my home .
Well, this these girls don't know my culture and my country 'cause she told me that us we only eat potatoes and rice and that food is not nutritious. I said, "OMG really you're wrong, hahaha." Well, is a new experience for me xD
If you come to my country, please inform yourself first 'cause my culture is amazing is a device and diverse. ^^
Thanks for checking my mistakes.

It's too bad that someone would say such inaccurate things about your culture!