Dialogue

1. 请您先拿号，再去那边等候。Qǐng nín xiān ná hào, zài qù nàbian děnghòu.
Please take a number and wait over there.
请 qǐng, please.
您 nín, polite form of 你 nǐ, which means you.
先 xiān , first.
拿 ná, to take.
号 hào, number.
再 zài, then.
去那边 qù nàbian, to go there.
等候 děnghòu, to wait. 　

2. 请问，需要等多长时间？Qǐngwèn, xūyào děng duō cháng shíjiān?
Excuse me, how long should I wait?
Banks can be very busy.So it might be helpful to ask somebody how long the wait will be.You can say 请问, 需要等多长时间?
请问 qǐngwèn, excuse me.
需要 xūyào, need.
等 děng, the third tone, means to wait.
多长时间 duōcháng shíjiān, how long.
Anyhow, it’s still a useful expression when you are waiting in other cases.　

3. 我想取点钱。Wǒ xiǎng qǔ diǎn qián.
I’d like to withdraw some money.
我 wǒ, I.
想 xiǎng, the third tone, means want to.
取 qǔ, the third tone. Here it means “withdraw”.
点 diǎn, is short for 一点, which means some.
钱 qián, money.　

4. 您取多少钱？Nín qǔ duōshao qián?
How much would you like to withdraw?
You need to give more information. Generally the teller will ask you “How much?” 您取多少钱?
您 nín, you.
取 qǔ, withdraw.
多少 duōshao, how much.
钱 qián, money.
Or you just say “取多少？qǔ duōshao?”for short. The answer could simply be a number, or a number plus 钱 qián. For instance, if you want to get 10,000 yuan, you can say 一万元 yí wànyuán.　

5. 请您输入密码。Qǐng nín shūrù mìmǎ.
Please enter your PIN number.
Finally, they might ask you to enter your PIN number. They might ask you 请您输入密码.
请 qǐng, please. 
您 nín, you. 
输入 shūrù, input. 
密码 mìmǎ, PIN number.