Hello.
user
Hello, how may I assist you?
assistant
I need your help to book a flight ticket on 11/18 and 11/20.
user
OK, may I know your origin and destination airport codes?
assistant
Sure, my origin code is NC-CLT and destination code is CA-SFO.
user
Sorry, unfortunately there is no flight in these travel dates.
assistant
OK, that's fine.
user
May I know your name please?
assistant
Sure, I am John Thomas. Thank you.
user
Thank you, have a good day.
assistant