有关问路的英语,急需!

不必给司机说那么多,简单点更好.
Excuse me, is this bus going to DUNDALK?
如果他回答是.上车
然后说
may i ask you to do me a favor?
他会回到sure or yes.
The thing is that, im going to DUNDALK where is a tax office located. I'm new here, i have no idea about all sort of things about roads and buses. could you give me a warn when we got there?
他说sure
你就礼貌的说thank you very much.
最好你就站他旁边,国外的公车前后都能下人.他会告诉你到站了的.
如果你不知道到站怎么去.
你可以接着问
could you please point where the tax office is?
或
could you tell me how to get to the office?

出门前记得查下公车时间表.一般国外公车都不会太快来一趟.是有时间定的.

I want to go to DUNDALK, can this bus get there? If the bus get there, can you please remind me? I don't know here really well. Thank you.