You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what sort of help are you seeking from me?

USER: I am Stephanie Green.

ASSISTANT: OK.

USER: Can you please book a ticket for me as I am planning to for Lady bird lake bike tour at Austin, AUS?

ASSISTANT: Sure. Let me know your travel dates that you wish to travel?

USER: Journey dates are 12/28 to 12/30.

ASSISTANT: May I know your airport codes please?

USER: Source code is Seattle, SEA.

ASSISTANT: AA airline plane is available with a fare of 200. Shall I proceed to confirm 1003 flight?

USER: You can proceed.

ASSISTANT: Ok, your booking has been completed.

USER: Thank you.

ASSISTANT: Thanks a lot for making it easier.