You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm James Robert.

ASSISTANT: How can I assist you today?

USER: I am planning to attend live concert at PHX, can you please help me with booking a flight ticket from AUS?

ASSISTANT: On which dates do you want to travel?

USER: Sure, I would like to take off on 06/29 and return back on 07/01.

ASSISTANT: Sorry James, no flight is available.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: You are welcome, have a nice day.