You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you please help me in booking a flight ticket from Las Vegas, LAS to reach MSP?

ASSISTANT: Sure. May I know your name please?

USER: My name is Jonathan Wright.

ASSISTANT: Now share your travel dates please?

USER: My journey dates are from Dec 26 to Dec 28.

ASSISTANT: May I know your class preference please?

USER: I prefer business class flight.

ASSISTANT: Do you have any other preferences?

USER: I need a lay by in between journey.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Thanks for waiting. Sorry to inform you that presently business class flights are not available.

USER: That's ok, not a problem. Thank you.

ASSISTANT: Thank you.