You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am planning a business trip from ATL to PHL, can you help me in booking a ticket?

ASSISTANT: Sure, I will help you. Please share your travel dates?

USER: My travel dates are 07/04 and 07/06.

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

USER: Ok.

ASSISTANT: There is a flight with connection limit 1 and fare 300, shall I proceed for booking?

USER: No, I need a flight with price 200.

ASSISTANT: Sorry to say, there is no flight available with fare 200. May I know your name please?

USER: I am Mark Clark. No problem, thanks for checking.

ASSISTANT: Thanks for reaching us. Have a nice day.