Lucy：Good morning, I'd like to change US dollars into RMB. 
          早上好，我想把美元换成人民币。

Clerk：How much do you want to change? 
          您想换多少？

Lucy：Well, what's the rate today? 
          今天的汇率是多少？

Clerk：It's 1 US dollar to 7.6 Yuan RMB. 
          一美元兑七点六元人民币。

Lucy：I want to change 1000 US dollars to RMB. 
          我想换一千美元。

Clerk：Okay. Here is the 7,600 RMB. Please sign here. 
          好的，这是您的七千六百元人民币，请在这儿签字。

Lucy：OK. Thank you. 
          好，谢谢。