<|user|> i would like a cheap mexican restaurant , please . <|system_actions|> request slot area <|user|> i do not care <|system_actions|>  <|user|> be there any cheap vietnamese location ? <|system_actions|>  <|user|> may i get the phone numb of thank binh , please ?
request slot phone,inform food vietnamese,inform area dontcare,inform price range cheap