You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Kevin Hall.

ASSISTANT: How may I help you?

USER: I planned to meet my friend in SFO, can you please help me to book a flight ticket from MSP?

ASSISTANT: Sure, can I have your journey dates please?

USER: I prefer to travel on 11/25 and 11/27. I need a direct flight.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Kevin, no flights has been found on your journey dates.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for choosing us.