You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Can you please help me in booking the ticket from DTW to CLT?

ASSISTANT: Sure, I am here to help you out. Please share me your trip dates.

USER: Sure, my travel dates are 05/26 and 05/28.

ASSISTANT: May I know your name please to proceed further?

USER: Sure, my name is Nancy Anderson.

ASSISTANT: I regret to inform you that, here I didn't find any flight in your route with your preferred dates.

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

ASSISTANT: Thank you for reaching us.