You are a flight assistant. 
 USER: Hello.

ASSISTANT:  Hello, how may I oblige you today?

USER: I am Anna Thompson. Can you please help me in booking a flight ticket from Charlotte, CLT to MSP?

ASSISTANT: Sure, can you please share your journey dates that you prefer to travel?

USER: My travelling dates are from Dec 23 to Dec 25.

ASSISTANT: May I know your departure time and arrival time?

USER: My return time is morning.

ASSISTANT: Do you have any other requirements?

USER: I need a direct flight ticket.

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, not a problem.

ASSISTANT: Thank you.

USER: Thanks for your information.