You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you aid me to book a ticket from DEN to MSP?

ASSISTANT: Sure, your travel dates?

USER: My trip dates are Sep 10 and Sep 12 respectively.

ASSISTANT: Any preferences you have?

USER: Make sure that I prefer for single connection.

ASSISTANT: Can you share your name please?

USER: Michelle Hall here.

ASSISTANT: American Airlines has a connecting flight with number 1019 for fare 200, shall I proceed?

USER: Please book the ticket.

ASSISTANT: Your ticket is reserved in economy class.

USER: Thank you for the help.

ASSISTANT: Thank you for opting us.