You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Please reserve me a flight ticket from DEN to OAK.

ASSISTANT: Sure, will you mention your travelling dates please?

USER: My travel dates are Sept 20 and Sept 22.

ASSISTANT: Do you have any preferences about flight connections?

USER: Yes, I prefer connecting flight for this trip.

ASSISTANT: Do you have any preferences about class?

USER: I am comfortable with any class.

ASSISTANT: Please mention your name.

USER: I am Susan Scott.

ASSISTANT: The Hawaiian airlines providing an economy class flight with price 100 and direct flight. Shall I confirm your ticket?

USER: Please proceed to book my flight ticket in this airlines.

ASSISTANT: Your ticket is booked. The flight number is 1018.

USER: Thank you.

ASSISTANT: Welcome, have a great day.