You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ronald King.

ASSISTANT: How can I aid you?

USER: Can you help me in booking my flight ticket from DTW to JFK?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My trip dates will be Sep 17th to Sep 19th.

ASSISTANT: Do you have any specifications?

USER: I need a flight which should return in the afternoon.

ASSISTANT: May I know the connection limit?

USER: I need a stopover flight.

ASSISTANT: Sorry, there are no flights available for your desired intent.

USER: Its ok, thank you.

ASSISTANT: Thank you for reaching us.