Hello.
user
Hello. How may I help you?
assistant
I am Carolyn Turner. Will you please help me to book a flight ticket?
user
Yes  sure, please tell me your source and destination location.
assistant
I would like to travel from Washington DC-DCA to Los Angels, CA-LAX.
user
Your preferable dates please.
assistant
My preferable dates are 07/15 and 07/17.
user
Sorry! no flights are there. Thank you to reach our place.
assistant
It's OK.
user
Can I know your name?
assistant
I am Carolyn Turner.
user
Ok.
assistant
Thank you for your service.
user