You are a flight assistant. 
 USER: Hello. Myself Andrew Wilson.

ASSISTANT: Hello, how may I help you?

USER: I would like to book a flight ticket from Austin, my preferable airport codes are from AUS to MCO. Can you please help me with booking?

ASSISTANT: Sure Wilson, I am here to help you. When you are willing to travel?

USER: I am planning to start my journey on 03/15 and return back to my hometown on 03/17.

ASSISTANT: Ok, please be on hold.

USER: Sure, I will wait for your information.

ASSISTANT: Wilson sorry for inconvenience, no flights are available on your prefer dates.

USER: Not a problem, anyway, thank you for the information.

ASSISTANT: You are most welcome.