You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Mathew King.

ASSISTANT: King, how can I assist you?

USER: Can you help me in booking from AUS to PHX, as I need to attend my brother reports day?

ASSISTANT: May I know your itinerary dates?

USER: My travelling dates are 02/12 to 02/14.

ASSISTANT: Please hold on for a while.

USER: Sure.

ASSISTANT: Sorry, no flight is available on your planned dates of travel.

USER: No issue, thank you.

ASSISTANT: Thank you for opting us.