Hi.
user
Hello. How may I help you?
assistant
 I would like to meet my friend in LAS from AUS, can you help me to find a flight?
user
Ok, may I know your travelling dates?
assistant
My travelling dates are 09/26 and 09/28.
user
Ok, may I know your name in the meanwhile?
assistant
Patricia Williams here.
user
Sorry, there is no flight for you on your preferable dates.
assistant
It's ok, thanks for your help and information.
user
Welcome Patricia Williams.
assistant