You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

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

ASSISTANT: May I know your travel dates?

USER: Depart is by Aug, 10 and return date is Aug, 12.

ASSISTANT: Do you prefer connecting flight?

USER: I would prefer connecting flight.

ASSISTANT: Do you have any other specifications?

USER:  I prefer business class.

ASSISTANT: May I know your good name?

USER: My name is Kevin Parker.

ASSISTANT: We found a flight in an business class with 1 connection in Frontier airlines and the fare of your flight will be 400. Do you like me to proceed your booking with this flight?

USER: Please book a ticket.

ASSISTANT: Your booking is done with flight number 1004.

USER: Thank you.

ASSISTANT: Thank you for reaching us.