You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: Please help me to book a flight ticket from DEN to ORD.

ASSISTANT: Sure, We are here to assist you.

USER: Thank you.

ASSISTANT: Can I know your travelling dates?

USER: My travelling dates are from Nov, 05 to Nov, 07.

ASSISTANT: Do you need any break?

USER: I need a single connecting flight.

ASSISTANT: Is there any other specification?

USER: No.

ASSISTANT: May I know your name?

USER: My name is Scott Miller.

ASSISTANT: We found a connecting flight with an Southwest airline, flight number:1015. Can I reserve it?

USER: Please proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.