You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

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

ASSISTANT: May I know on which dates you are willing to travel?

USER: My travelling dates are from May 09 - 11.

ASSISTANT: Do you require any stopovers in your journey?

USER: I prefer for direct flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT:  Thanks for sharing your details, we are unable to provide flight in between your journey routes due to heavy snowfall at destination airport.

USER: That's ok, no problem.

ASSISTANT: May I know your name?

USER: Brenda Allen.

ASSISTANT: Thank you.

USER: Thank you.