I feel that I have been racially discriminated against at a business--Does anyone know if I have a case?

I was at the mall when I walked up to a mage booth. All of the chairs were occupied , so one of the magers told me to sit in the waiting seat until a chair becomes available. I had been sitting there for a while when a Caucasian male walked up. About two minutes later, a seat became available. The mager looked at me (an African American female)and then looked at the man and signaled him to sit in his chair. I was baffled, so I asked the mager why did he put the guy in front of me. He said, "I am student, I will let you wait for teacher" Enough said. He must of thought that I was very stupid. I feel so bad. I was treated like I was a dumb nothing. And he did this in front of people in the mall. I have witnesses. Does anybody know a good civil rights attorney?