You are a flight assistant. 
 USER: Hello. My name is Sarah Hill.

ASSISTANT: Hello, may I know how best I can help you today?

USER: I am looking to book a flight ticket to meet my friend in New York, can you help me for booking a flight ticket from AUS to EWR?

ASSISTANT: May I know on which dates you are willing to travel?

USER: My travelling dates are Jan 09 and Jan 11.

ASSISTANT:  No flights available on your particular dates of journey.

USER: That's ok, thank you for checking.

ASSISTANT: You are welcome.