You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you today?

USER: Myself Patrick Davis. I am planning to visit LAX to meet my client, can you please help me to book a flight from IAD?

ASSISTANT: When are you planning to make your journey?

USER: Sure, my journey dates are from 09/01 to 09/03.

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, thank you for your information.

ASSISTANT: Your welcome.