You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I would like to travel from DTW to OAK to explore global culture. Will you reserve me a flight ticket?

ASSISTANT: Sure, help me with the trip dates?

USER: My planned trip dates are July 14 and July 16.

ASSISTANT: Do you have any preferences in airlines?

USER: I need a ticket in normal cost airline.

ASSISTANT: May I know your name please?

USER: I am Brian Brown.

ASSISTANT: We have an economy class, connecting flight operated by United Airlines with a fare of 200. Is it ok for you?

USER: Yes, please confirm it.

ASSISTANT: Your flight ticket has been booked with 1001 number.

USER: Thank you.

ASSISTANT: Thank you for reaching us.