You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you at this moment?

USER: Can you please help me in booking a flight ticket from Detroit, DTW to New York, EWR?

ASSISTANT: Can you please forward your journey dates?

USER: My travelling dates are from Feb 15 to Feb 17.

ASSISTANT: Is there any connection limit for you?

USER: I need a lay by in between journey.

ASSISTANT: May I know your name?

USER: My name is Stephen Lee.

ASSISTANT: Is there any another specifications on your trip?

USER: My depart time is evening.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry Stephen Lee, we haven't found any flight based on your specifications.

USER: Ok, that's not a problem. Thanks for your information.

ASSISTANT: Thanks for reaching us.