You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I want to book a ticket from AUS to PHX, can you help me?

ASSISTANT: Sure, please provide your trip dates.

USER: My trip dates are 04/12 and 04/14.

ASSISTANT: Please hold on for a moment.

USER: Ok.

ASSISTANT: May I know your name for further proceedings?

USER: I am Stephen Roberts.

ASSISTANT: Sorry Stephen, no flight is available on your route.

USER: No problem, thanks for checking.

ASSISTANT: Thank you for contacting us.