Had my interview in the New Orleans, LA office. Had about a hour wait. It seems the guy who assigns the cases did not assign my case to anyone. When the officer called my name she profusely apologized for the delay.
She did not ask for any additional documentation. She verified my application information. She was super nice and we chatted a bit which helped with the anxiety of the whole ordeal. She tested me on written english and asked the 6 civics questions, asked me to sign some documents. And approved me.