Basic Chinese Phrases----in the post office

I'd like to buy some stamps for this letter.
我想买这封信的邮票。

Let me just weigh it first.
请先让我称一称。

How much will it be?
要多少钱？

Are you sending it by regular or by speed?
你要寄平信还是快递？

Just the regular.
平信就好了。

That'll be four yuan.
四元。

How long will it take for my mail to reach its destination?
我的信件到达目的地要多久？

Just two days.
只要两天。

Thanks.
谢谢。

Good day.
再见！

Good day also to you.
再见！

What can I do for you?
我能帮你什么忙？

Is this where I claim parcels?
这里是领包裹的地方吗？

No, please go to window thirty-six.
不是，请到第三十六号窗口。

Thanks a lot.
多谢。

That's nothing at all.
不用客气。

How many days will it take for my mail to reach its destination?
我的信件到达目的地要用几天？

How much time will it take for my mail to get to where it is going?
我的信件到达它要去的地方要用多少时间？

How fast can my mail be received?
我的信件多快会被收到？

How soon will my mail be received by the other end?
我的信件多快会被收到？