You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Donald Evans.

ASSISTANT: How can I hand helping to you right now?

USER: I am planning to visit DCA, can you help me in booking the ticket from AUS?

ASSISTANT: Sure, I am here to help you.

USER: Ok.

ASSISTANT: Please provide your preferable travelling journey dates.

USER: My planning dates are from 06/18 to 06/20.

ASSISTANT: Please give me some time to check the flight.

USER: Sure, take your time.

ASSISTANT: Thank you for your patience, there is a flight 1005 with a 1 landing airport region in your journey, is it ok for your booking?

USER: That's great, please proceed.

ASSISTANT:  Donald Evans, the plane ticket is reserved in Southwest airlines on your moving dates. Enjoy your flight trip.

USER: Thank you for your help.

ASSISTANT: Most welcome.