You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Can you help me to book a flight ticket from SFO to CLT?

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

USER: My trip dates are Nov, 10 and Nov, 12.

ASSISTANT: Do you have any preferences?

USER: I need connecting flight.

ASSISTANT: On what name, do I need to reserve the ticket?

USER: Susan Lee here.

ASSISTANT: We found a direct flight 1009 from Spirit airline with a fare 200.

USER: Please proceed with this airlines.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you.

ASSISTANT: Thank you for reaching us.