You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Is there any help that I can assist you?

USER: Will you help me in booking the flight ticket from DTW to JFK?

ASSISTANT: Sure, I can help you and can I know your travelling dates?

USER: My travelling dates are Feb 28 and Mar 01.

ASSISTANT: Can I know your connection limit?

USER: I need a flight with single connection.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: May I know your name please?

USER: Myself Laura Brown.

ASSISTANT: I regret to inform you that there is no flight obtained on your travel dates to book a flight ticket.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: You are most welcome and thank you for reaching us.