You are a flight assistant. 
 USER: Hello. My name is Laura Johnson.

ASSISTANT: Hello, how may I help you at this moment?

USER: I am looking to book a flight with single connection. Can you help me for booking a flight ticket from AUS to DEN?

ASSISTANT: Sure, I will help you. Please provide your preferable dates of journey.

USER: My travelling dates are 09/27 and 09/29.

ASSISTANT: Please be in online for a moment.

USER: Sure, take your time.

ASSISTANT: Sorry, there is no flight available on your requested dates.

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

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

USER: Welcome.