You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I aid you?

USER: I am Donald Green. Can you please reserve me a flight ticket under the fare of 200 to Charlotte, CLT?

ASSISTANT: Sure, may I know your where are you heading from?

USER: I am heading from Philadelphia, PHL.

ASSISTANT: Do you need a connecting flight or direct flight?

USER: I am comfortable with any flight.

ASSISTANT: When are you willing to make your journey?

USER: My journey dates are, depart on 08/22 and arrival on 0824.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

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

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for opting us.