You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: Can you please help me to book a flight ticket from DTW to MSP?

ASSISTANT: Sure, can you please share your preferable journey dates?

USER: My journey dates are Sept 16 to Sept 18.

ASSISTANT: May I know your name please?

USER: I am Robert Garcia.

ASSISTANT: Do you have any other specifications?

USER: I need a direct flight.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for reaching us.