Hello. My name is Robert Parker.
user
Hello Robert. What can I do for you?
assistant
I want to travel from LAS to ATL to attend my business meeting. Will you please help me in booking my ticket?
user
Yes, I will help you in booking your ticket. May I know your preferable dates?
assistant
My preferable dates are 07/19 to 07/21.
user
I'm sorry to inform you that there are no flights available which matches with your preferences.
assistant
That's ok. Thank you for your time.
user
Thank you for reaching us.
assistant