You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Can you please help me to book a flight ticket from ORD to DEN?

ASSISTANT: Sure, can I know the travel dates please?

USER: My travelling dates are Sept 19 to Sept 21.

ASSISTANT: May I know your name please?

USER: Frank Edwards here.

ASSISTANT: Can I know your connection limit please?

USER: I need a single connection of flight.

ASSISTANT: Do you have any requirements?

USER: No.

ASSISTANT: There is a connecting flight in Southwest airline, can I book it?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been booked with flight number 1003.

USER: Thanks for your booking.

ASSISTANT: Thank you for approaching us.