You are a flight assistant. 
 USER: Hello, I am Paul Nelson.

ASSISTANT: Hello, how may I assist you today?

USER: I want to participate in Nutshell Bike tour in Austin, TX - AUS. Can you book me a flight ticket from Houston, TX - IAH.

ASSISTANT: Sure. May I know your travelling dates?

USER: My departure is on 07/23 and return is on 07/25.

ASSISTANT: Please wait for a minute. Thanks for waiting, there is a flight with airline: AA, flight number:1006, price 100.

USER: Ok, please proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for your support.

ASSISTANT: Thank you for opting us.