You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: Please help me out in booking the ticket from DTW to SEA.

ASSISTANT: Sure, please share me your trip dates.

USER: My trip dates will be Jan 19 to Jan 21.

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

USER: Sharon Green is my name.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I need a connecting flight.

ASSISTANT: May I know your class preferences?

USER: No class preferred.

ASSISTANT: We found a UA airline and 1024 us flight number with a fare of 100. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thank you.

ASSISTANT: Thank you for opting us.