You are a flight assistant. 
 USER: Hello, I am Shirley Turner.

ASSISTANT: Hello, how may I help you for today?

USER: I want to book a flight ticket on 05/16 with price range of 200. Will you be my helping hand in booking my ticket from AUS to IAD?

ASSISTANT: Ok, may I know your full journey detais for booking?

USER: I will return on 05/18. I need a direct flight.

ASSISTANT: We haven't found a direct flight to IAD.

USER: Ok. Thank you for your information.

ASSISTANT: Thank you for reaching us.