You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you please find a flight for my journey from MSP to SEA?

ASSISTANT: May I know your trip dates?

USER: My journey dates are from Feb 29th to Mar 2nd.

ASSISTANT: Do you have any other requirement?

USER: I need my return time to be in evening. I was looking for a business class flight.

ASSISTANT: May I know your name?

USER: Sure, my name is Brandon Martinez.

ASSISTANT: Sorry, there is no flights available on these route.

USER: Oh! That's fine. Thank you for checking.

ASSISTANT: Most welcome.