You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I assist you?

USER: My name is Joshua Clark. I have a plan to visit Art Exhibition at Detroit Institute of Arts in Detroit.

ASSISTANT: Ok, may I know your travel details?

USER: Can you please help me to book a flight ticket to MI - DTW airport? My journey dates are from 11/22 to 11/24.

ASSISTANT: Sure, could you please provide me your origin point?

USER: And my present airport to board is from Denver, CO - DEN.

ASSISTANT: Ok, please wait a minute. Let me check and get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting. Unfortunately there is no flight found with your request.

USER: Ok, not an issue. Thanks for your response.

ASSISTANT: Thank you for choosing us and have a great day.