Hi.
user
Hello. How can I aid you?
assistant
Please help me in booking  a flight ticket from IAD to ORD.
user
Sure, We are here to serve you. Can I know your travelling dates?
assistant
My trip dates are from Feb, 16 to Feb, 18.
user
Do you need any break?
assistant
I need a single connecting flight.
user
Is there any other requirements?
assistant
I prefer to depart in the morning and I need a business class to fly.
user
May I know your name?
assistant
Jessica Phillips.
user
Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.
assistant
Thank you for your information.
user
Thank you for approaching us.
assistant