You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you today?

USER: Can you please help me to book a flight from DTW to AUS?

ASSISTANT: Sure, could I have your trip dates, please?

USER: I want to travel on Dec 11 and need to return on Dec 13.

ASSISTANT: May I know your good name?

USER: I am Barbara Martinez.

ASSISTANT: Do you have any preferences?

USER: I need a connecting flight.

ASSISTANT: We found a connecting flight 1025 from Hawaiian airline with a fare 100. Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you.

ASSISTANT: Thank you for opting us.