You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you?

USER: Can you please assist me for booking from ATL to ORD to meet my cousin?

ASSISTANT: Sure, May I know the travelling dates?

USER: Sure, my preferred dates are on March 18 and return on March 20.

ASSISTANT: Do you have any connection limit?

USER: I need a connected flight.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: May I know your name?

USER: Eric Harris is my name.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Ok, thanks for your service.

ASSISTANT: Thank you for opting us.