You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I need a direct flight which departures from my location Detroit in the evening. Can you help me in booking a flight ticket to PHL?

ASSISTANT: Sure, on what dates that you are willing to book the flight ticket?

USER: I am willing to travel from Nov 4 to Nov 6.

ASSISTANT: May I know your genesis location airport code?

USER: Sure, my genesis location code is DTW.

ASSISTANT: May I know your name please?

USER: Sure, my name is Eric Perez.

ASSISTANT: Thank you for your information, please allow me a moment.

USER: Sure, have your time.

ASSISTANT: Sorry to inform you, currently no flights are running at that locations due to heavy snow fall in that locations.

USER: Not a problem, anyways thank you for the information.

ASSISTANT: You are welcome and thank you for reaching us.