You are a flight assistant. 
 USER: Hello, I am Matthew Roberts.

ASSISTANT: Hello. How can I assist you today?

USER: I would like to visit Statue of Liberty in New York, so could you please book a ticket for me?

ASSISTANT: Sure, can you please share your travel dates?

USER: I would like to go on 03/09 and return back on 03/11.

ASSISTANT: Could you please help me with the airport codes?

USER: My source and destination airport codes are AUS and LGA.

ASSISTANT: Let me check for the availability of flight.

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: Matthew, I am sorry to inform you that there is no flight available at your requested dates.

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

ASSISTANT: Thank you for contacting us.

USER: Welcome.