You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I want to book a flight ticket from OAK to DFW. Could you help me in booking?

ASSISTANT: Sure, may I know on which dates you are willing to travel?

USER: My travelling dates are from Sep 04 - 06.

ASSISTANT: For further proceeding, may I know your good name?

USER: Patrick Miller.

ASSISTANT: Would you like to fly in economy class flight or business class flight?

USER: I am comfort with two.

ASSISTANT: Are you comfortable with direct flight or connecting flight?

USER: I prefer for connecting flight.

ASSISTANT: May I know your airline preference?

USER: I can comfort with any airline.

ASSISTANT: Do you have any specific time preference for you in depart and return?

USER: No.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Delta airline is providing a connecting flight of fare 100 with economy class, shall I proceed for booking?

USER: Yes, please proceed.

ASSISTANT: Your ticket has been confirmed with flight number 1012.

USER: Thank you.

ASSISTANT: Thank you for reaching us.