A White female waitress says she was offended when a black man said I want a black person as my server. Is it cool to request the kind of server you want?

This morning we have more audio from our live broadcast from uptown Charlotte doing the Charlotte shout festival which was held this past weekend as we produced our show in front of a live studio audience this morning we are playing a portion of the program and which we talked about a white waitress being discriminated against in Charlotte. A black patron did not want a white waitressed serving him so he asked for a black one and we discussed it and the question is do you have to prefer a certain server at a restaurant?