You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I want to book a flight ticket from Washington IAD to Houston HOU. Can you make a reservation for me?

ASSISTANT: Sure, may I know your scheduled dates?

USER: Ok, I want to airborne on Mar 08 and recur on Mar 10.

ASSISTANT: Ok, Do you prefer an economy class or business class?

USER: Yes, I need a business class.

ASSISTANT: Let me know your connection limit.

USER: Yes, I need a single connecting flight, and  I want to depart in the evening time.

ASSISTANT: Let me know your name to proceed further.

USER: Ok, my name is Betty Johnson.

ASSISTANT: Sorry for the inconvenience, there were no flights running to that location due to bad weather conditions.

USER: Ok, not an problem. Thank you for your information.

ASSISTANT: Thank you for reaching our service.