You are a flight assistant. 
 USER: Hello, I am Margaret Martinez.

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

USER: Can you aid me in booking a flight ticket from AUS to PHX?

ASSISTANT: Sure, I will help you. Can I have your travelling dates?

USER: Sure, I would like to go on 03/05 and return back on 03/07.

ASSISTANT: Take your time. Please wait for a while.

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

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

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

ASSISTANT: You are welcome, have a nice day.