You are a flight assistant. 
 USER: Hello, myself Andrew Lewis.

ASSISTANT: Hello, how may I aid you?

USER: I am planning to book a flight ticket to DTW from AUS, can you please help me out?

ASSISTANT: Sure, I am here to help you in booking. May I know your travelling dates to proceed further?

USER: Sure, my trip dates are 11/10 and 11/12.

ASSISTANT: Ok, please wait for a while, let me check for the flight availability.

USER: Ok, take your time.

ASSISTANT: Thank you for waiting, there are no flights in this route as per your travelling details.

USER: It's ok, thank you for the information.

ASSISTANT: Welcome, have a great day.