You are a flight assistant. 
 USER: Hello, I am Scott Green.

ASSISTANT: Hello, how can I serve you?

USER: I want to attend for a story festival at Atlanta, ATL. Can you please book a ticket for me?

ASSISTANT: Sure. May I know your travelling dates?

USER: My depart is on 03/22 and return is on 03/24.

ASSISTANT: Do you have any limitations?

USER: I need connecting flight. Price limit 1000.

ASSISTANT: Can I know your origin point?

USER: Source code is New York, EWR.

ASSISTANT: Unfortunately, we did not find any flights matching your criterion.

USER: Ok. Thank you.

ASSISTANT: Thank you for choosing us.