You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

USER: Can you aid me to book flight ticket from DEN to MSP?

ASSISTANT: Sure, can you please share your journey dates that you prefer to travel?

USER: My journey dates are Mar 15 and Mar 17.

ASSISTANT: Do you prefer any lay by in between journey?

USER: I prefer a connecting flight.

ASSISTANT: Is there any other specifications regarding your journey?

USER: I do not have any other specifications.

ASSISTANT: Can I know your name for booking your flight ticket?

USER: I am Edward Martin.

ASSISTANT: Sorry, no flights are available in this route as per your requested dates.

USER: It's ok, thank you.

ASSISTANT: Thank you for reaching us.