You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Can you please help me in booking flight ticket from DTW to ORD?

ASSISTANT: Sure, can you share your trip dates?

USER: Yes, my trip dates are May 17 and May 19.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: May I know your name?

USER: Yes, my name is George Moore.

ASSISTANT: Sorry, there is no flight on your given dates.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for reaching us.