You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I serve you?

USER: I am Sarah Adams and I want to book a flight ticket to MI -DTW to attend a board meeting from MN-MSP.

ASSISTANT: May I know the travelling date details?

USER:  Sure,My travelling dates are from 06/26 to 06/28.

ASSISTANT: Please wait I will check and let you know.

USER: Ok.

ASSISTANT: Sorry, We are not able to found flights with your detail.

USER: No issue, thank you.

ASSISTANT: Thank you for choosing us, Have a nice day.