对不起，我不知道。

I'm sorry,I don't know.

恐怕帮不了你，我对这的情况也不熟。

I'm afraid I can't help you. I'm new here myself.

我自己也人生地不熟。

I'm strange here myself.

请问别人吧。

Please ask someone else.

干嘛不问那边那个警察呢?

Why don't you ask the police man over there?