You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Can you please help me in booking a flight ticket from Minneapolis, MSP to Detroit, DTW?

ASSISTANT: Sure, may I know your trip dates?

USER: My journey dates are from Mar 21 to Mar 23.

ASSISTANT: Do you have any connection limit preference?

USER: I need a connection in between journey.

ASSISTANT: Could you help me with your name please?

USER: My name is John Campbell.

ASSISTANT: Sorry, there is no flight available for the mentioned dates.

USER: Ok, that's not a problem. Thanks for your information.

ASSISTANT: Thank you for reaching us.