You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me in booking my ticket from MSP to DTW?

ASSISTANT: Can you please tell me your trip dates?

USER: Sure, my trip dates are from 04/22 to 04/24.

ASSISTANT: Do you have any other requirements?

USER: Yes, I need a single connecting flight.

ASSISTANT: May I know your name please?

USER: Myself Frank Wright.

ASSISTANT: Sorry, we regret to inform you that there is no flight available as per your request.

USER: It's ok, thank you.

ASSISTANT: Most welcome.