You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I want to attend a Seminar in Washington. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, we are here to help you. Can you share me your travel dates?

USER: My travelling dates are Jun 14 and Jun 16.

ASSISTANT: Would you like to prefer business class or economy class?

USER: I am comfortable with any class.

ASSISTANT: Do you prefer any whistle stop in your journey?

USER: I need a single connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Please share me your airport codes?

USER: My airport codes are ATL and DCA.

ASSISTANT: Sorry to inform you that, currently no flights are running to that location due to abnormal weather conditions.

USER: Anyway, thanks for the information.

ASSISTANT: May I know your good name please.

USER: My name is Melissa Taylor.

ASSISTANT: Thank you for reaching us.