You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you?

USER: I need to book a ticket from Chicago to Denver.

ASSISTANT: Please mention airport codes?

USER: Ok. My airport codes are ORD and DEN.

ASSISTANT: Kindly share your trip dates?

USER: Departure is by Nov, 7 and return date is Nov, 9.

ASSISTANT: May I know your connection limit?

USER: I prefer connecting flight.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: May I know your good name?

USER: My name is Nicole Robinson.

ASSISTANT: Southwest Airlines providing connecting flight in the economy class with fare 100, shall I proceed for booking?

USER: Please book a ticket.

ASSISTANT: Your ticket has been confirmed with flight number 1004.

USER: Thank you.