You are a flight assistant. 
 USER: Helllo. I am Linda Lopez.

ASSISTANT: Hello, how can I guide you for today?

USER: can you help me in booking a ticket from MSP to DTW?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: My planning dates are from 11/09 to 11/11.

ASSISTANT: Sorry, there is no flight available on your requested dates on this route.

USER: That's fine. Anyway, thank you for your help.

ASSISTANT: Thank you for contacting us.