You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I would like to meet my business partner at Chicago, could you please help me in booking a ticket?

ASSISTANT: Sure, I will help you. Please share your desired airport codes?

USER: My source and destination airport codes are PHL and ORD.

ASSISTANT: May I know on which dates are you willing to travel?

USER: My travelling dates are from 12/29 to 12/31.

ASSISTANT: Wait a while, I will check and revert to you with flight details.

USER: Sure.

ASSISTANT: There is a flight with connection limit 1 and fare 700, is it ok for you?

USER: Please check the price with in 500.

ASSISTANT: There is no flight with fare 500. May I know your name please?

USER: Myself Gregory White.

ASSISTANT: Thank you for reaching us.

USER: Welcome.

ASSISTANT: Have a nice day.