You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I help you?

USER: I am Carol Campbell.

ASSISTANT: Ok.

USER:  I want to enter into Marketing business field, So I want to attend Marketing and Business Development Conference at Chicago, ORD.

ASSISTANT: Sure, may I know your travelling dates?

USER: Willing dates of my travel are 08/11 - 08/13.

ASSISTANT: May I know your source code?

USER: My source code is New York, LGA.

ASSISTANT: Sorry, no flights found on your requested dates.

USER: Ok, I will choose other airline.

ASSISTANT: Thank you for approaching us.

USER: Thank you for quick response.