Hello.
user
Hello, how can I assist you today?
assistant
I am Barbara Walker. Actually I want to meet my old friend's.Can you help me to book a ticket?
user
That's great Walker, may I know your preferable travelling dates?
assistant
My source and destination is AZ-PHX to DC-DCA. My preferable dates are 01/18 to 10/20.
user
Sorry, there are no flights available as per your requested dates.
assistant
It's OK.Thank you.
user
Thank you.
assistant