You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you?

USER: I want to book a flight ticket from DCA to JFK. Could you help me in booking?

ASSISTANT: Sure, we are here to help you. May I know your trip dates?

USER: My travelling dates are from Sep 20 - 22.

ASSISTANT: Do you have any connection limit?

USER: I prefer for connecting flight.

ASSISTANT: Is there any other specifications for you?

USER: I prefer for economy class.

ASSISTANT: May I know your good name?

USER: George Lee here.

ASSISTANT: We are regret to inform you that, no flights are available on your journey routes due to bad weather conditions.

USER: That's ok, no problem. Thank you.

ASSISTANT: Thank you for availing us.