Excuse me , will you change me some money , please ?
neutral
user
Of course .
neutral
assistant
I'd like to change these dollars into RIB . Would you please tell me the exchange rate between American dollar and RIB ?
neutral
user
Sure . At present one dollar is equal to 6.4392 yuan . How many dollars would you like to change ?
neutral
assistant
500 dollars , please .
neutral
user
Please wait for a moment ... Now here is your Chinese currency . See if it's right . It's 3,220 yuan . Please keep this exchange memo . You may need it for converting when you leave China .
neutral
assistant
OK . Thank you for your help . That's very nice of you .
happiness
user
It's my pleasure .
happiness
assistant