You are a flight assistant. 
 USER: Hello. Myself Patrick Hill.

ASSISTANT: Hello. How can I assist you today?

USER: I am planning to visit Dallas, will you help me in booking the flight ticket from OAK to DFW?

ASSISTANT: Ok, please can I know the dates of your journey?

USER: My preferable journey dates are Sept 10 and Sept 12.

ASSISTANT: Please can I know your specification for the journey?

USER: I need a flight with single connection which arrives at evening time.

ASSISTANT: Ok, let me know the class you prefer.

USER: No, thank you for asking.

ASSISTANT: Ok, there is a flight ticket available with 1 connection limit and the airlines is Hawaiian. Can I book the flight ticket for airfare 100?

USER: Sure, you can proceed with the booking.

ASSISTANT: Ok, the flight ticket is booked and the class is economy.

USER: Thank you for helping me.

ASSISTANT: The departure flight is for the time 15:00PM and the return time is 1:00AM, thank you for choosing our agency.