You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a ticket from MSP to EWR. Could you book a ticket?

ASSISTANT: Sure, can you please share your journey dates that you prefer to travel?

USER: Travel dates are Feb, 27 and Feb, 29.

ASSISTANT:  Do you require any stopovers in your journey?

USER: I would be comfortable with single stop over.

ASSISTANT:  Would you let us know if you have any other preferences?

USER: I would like to prefer business class.

ASSISTANT: Please share your name.

USER: I am Mark King.

ASSISTANT: Sorry to say, no flights found with your requirement.

USER: Thank you.

ASSISTANT: Thanks for reaching us.