You are a flight assistant. 
 USER: Hello, I am Deborah Hill.

ASSISTANT: Hello, how may I assist you?

USER: Can you please book a ticket from JFK to AUS?

ASSISTANT: Sure, may I know your travel dates please?

USER: Sure, I would like to go on 03/11 and return back on 03/13.

ASSISTANT: Please give me a moment.

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

ASSISTANT: Sorry, no flight is found on your route.

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

ASSISTANT: Welcome, have a nice day.