You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I want to travel from OAK to ORD. Can you help me to book a flight ticket?

ASSISTANT: Sure, could you please mention with your dates of journey?

USER: I want to travel in the flight on Jan 15 and Jan 17.

ASSISTANT: May I know your name please?

USER: Nancy White.

ASSISTANT: Are you looking for any other help from my side please?

USER: I prefer to travel in business class.

ASSISTANT: Ok, wait for a mean while.

USER: Ok, take your time.

ASSISTANT: There is a direct flight of fare 600 of Southwest airline, shall I proceed with this ticket booking?

USER: Proceed to booking.

ASSISTANT: Ok, I have confirmed your ticket with the flight number 1028.

USER: Thank you for your help.

ASSISTANT: You are welcome, have a safe journey.