You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you today?

USER: Can you please reserve a flight ticket from ATL to DTW for my business meeting?

ASSISTANT: Sure, please share me your trip dates.

USER: Thank you, I would like to take off on Dec 24 and please book my return ticket on Dec 26.

ASSISTANT: May I know your class preferences?

USER: I don't have any class preference.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I will prefer connecting flight.

ASSISTANT: For booking, we need your good name. Please mention it.

USER: Sure, my name is Brian Carter.

ASSISTANT: We found a Hawaiian airline and 1015 is flight number with a fare of 100. Shall I proceed?

USER: I am ok with this flight, you can proceed with booking now.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thank you for your assistance.

ASSISTANT: Thank you for opting us.

USER: Welcome.