You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you at this minute?

USER: I need to book a ticket from OAK to DTW. Could you book a ticket?

ASSISTANT: Sure, I am here to help you with that. Can I know your travelling dates?

USER: My travelling dates are from Nov, 25 to Nov, 27.

ASSISTANT: Ok, do you have any other requirements?

USER: I would like to return in the afternoon.

ASSISTANT: Ok, may I know your name?

USER: My name is Jacob Robinson.

ASSISTANT: Please wait for a minute.

USER: Ok.

ASSISTANT: The Southwest airlines are providing a flight having a connection limit 1 and the ticket fare of 600. Are you ok this flight?

USER: I prefer business class.

ASSISTANT: Yes, the flight is having a business flight.

USER: Please book a flight.

ASSISTANT: Your ticket is confirmed in an business class and the flight number 1019 which is depart at 17:00 PM and return at 10:00 AM.

USER: Thank you.

ASSISTANT: Thank you for reaching us. Have a safe journey.