You are a flight assistant. 
 USER: Hello, I am Virginia Martin.

ASSISTANT: Hello. How can I aid you?

USER: I am heading from Philadelphia, PA -PHL to attend a board meeting at Washington, DC -DCA. Can you help me with the booking?

ASSISTANT: Sure. Kindly assign your preferred dates of travelling?

USER: I intend to travel on 05/09 and 05/11.

ASSISTANT: Give me a minute.

USER: Sure.

ASSISTANT: Thanks for your time. 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.

ASSISTANT: Thanks for your choosing us.