You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you today?

USER: I am planning to book a ticket from DEN to JFK. Can you please help me out?

ASSISTANT: Sure, please share me your trip dates.

USER: I am planning to travel on Sept 15 and return back on Sept 17.

ASSISTANT: Is there any class preferences for you?

USER: No, I am ok with any class.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I am looking for a direct flight.

ASSISTANT: May I know your airline preferences?

USER: I am ok with any airline preference.

ASSISTANT: For booking, we need your name, please provide it.

USER: Yes, I am Raymond Gonzalez.

ASSISTANT: We found a Hawaiian airline and 1029 is flight number with a fare of 200. Shall I proceed?

USER: That's fine, please proceed the booking.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.