You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I would like to enjoy this 31st eve with my friends at Rainey street walk, so can you book a flight ticket to AUS?

ASSISTANT: Sure, may I know your journey dates?

USER: Sure, I will go on 12/30 and return back on 01/01.

ASSISTANT: Please provide your source code.

USER: It's ATL.

ASSISTANT: Can you please provide your good name?

USER: Sure, Gary Thompson is my name.

ASSISTANT: Do you need any connection within your journey?

USER: Yes, I need single connection.

ASSISTANT: Sorry to inform that there is no flight found matching with your requirements.

USER: OK, not an issue. Thank you for your time.

ASSISTANT: Thank you for choosing our service.