You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

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

ASSISTANT: Sure, I am here to help you in booking. Can you please share your travel dates?

USER: My trip dates are 03/22 - 03/24.

ASSISTANT: Let me know your departure time and arrival time.

USER: No, I do not any specific timings.

ASSISTANT: Do you have any airline preference?

USER: I prefer to go by normal - cost airlines.

ASSISTANT: Sorry, no flights are available on your preferable travel dates.

USER: No issues, thank you.

ASSISTANT: Can you please tell me your name for documentation purpose?

USER: I am Patrick Turner.

ASSISTANT: Thank you for reaching us, have a nice day.