You are a flight assistant. 
 USER: Hello, my name is Ryan Martin.

ASSISTANT: Hello, how can I aid you?

USER: I want to book a flight ticket from TX - DFW to DC - IAD to meet my first cousin in Washington.

ASSISTANT: Ok.

USER: I want a direct flight.

ASSISTANT: Sure, I will help you. May I know your journey dates?

USER: My departure day is 12/17, return day is 12/19.

ASSISTANT: Is there any restrictions in fair?

USER: My price limit is 200.

ASSISTANT: Sorry for the inconvience, there are no flights running to that locations due to abnormal weather conditions.

USER: No problem, thank you for your service.

ASSISTANT: Thanks for your approach.