You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I provide assistance for you?

USER: I am Gregory Walker want to visit EWR, can you book a ticket from AUS?

ASSISTANT: Sure, I am happy to aid you in flight ticket booking process. Can you please let me know your preferable travel dates for booking flight ticket?

USER: Sure, my travelling dates will be 09/02 and 09/04.

ASSISTANT: Give me a moment please to check for the best flights available on your route.

USER: Ok.

ASSISTANT: 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: Thank you for reaching us, have a nice day.