Hello.
user
Hello, how may I assist you today?
assistant
I want to book a flight ticket from Washington IAD to Houston HOU. Can you make a reservation for me?
user
Sure, may I know your scheduled dates?
assistant
Ok, I want to airborne on Mar 08 and recur on Mar 10.
user
Ok, Do you prefer an economy class or business class?
assistant
Yes, I need a business class.
user
Let me know your connection limit.
assistant
Yes, I need a single connecting flight, and  I want to depart in the evening time.
user
Let me know your name to proceed further.
assistant
Ok, my name is Betty Johnson.
user
Sorry for the inconvenience, there were no flights running to that location due to bad weather conditions.
assistant
Ok, not an problem. Thank you for your information.
user
Thank you for reaching our service.
assistant