You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: I want to book a ticket from LAX to OAK. Could you book a ticket?

ASSISTANT: Sure, may I know your name?

USER: My name is Robert Campbell.

ASSISTANT: Can I know your travelling dates?

USER: Travelling dates are Oct, 29 and Oct, 31.

ASSISTANT: Do you have any other preferences?

USER: I would like to return in the afternoon.

ASSISTANT: There is a flight of united airline, flight number 1012 with the fare of 200. It is a connecting flight. Can I proceed?

USER: Proceed for booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.