<|user|> i be want a expensive restaurant that offer african food . what be their numb ? <|system_actions|> request slot area <|user|> i do not care about the area of town . <|system_actions|>  <|user|> that sound good , what be their numb so that i can ring they ? <|system_actions|>  <|user|> great ! thank you . good bye .
inform food african,inform price range expensive,inform area dontcare