You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know you good name ?

USER: Andrew Rodriguez here, me and my brother want to go to Denver Art Museum. So I want to book a ticket from DTW to DEN.

ASSISTANT: That's good Andrew, I can help you. Can I know the dates?

USER: My travel dates are from 10/25 to 10/27.

ASSISTANT: Sorry Andrew, we could not found any flights as per your dates.

USER: Ok, thanks for your information.

ASSISTANT: Thank you for contacting us, have a great day.