You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Scott Collins, can you make my reservation from DTW to MSP?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travelling dates are from 12/22 to 12/24.

ASSISTANT: Sorry, there is no flight available on your provided dates.

USER: That's fine. Thank you for your help.

ASSISTANT: You are most welcome.