You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Andrew Walker. I am planning to book a ticket to attend a meeting at DEN. Can you please help me out to book a ticket from DCA?

ASSISTANT: Sure, let me know your travelling dates.

USER: I would like to travel on Feb 10 and return back on Feb 12.

ASSISTANT: Please share your specifications.

USER: Yes, I am looking for a connecting flight.

ASSISTANT: We found a connecting flight and price is 100 of 1022 flight. Shall I proceed?

USER: That's fine, please proceed the booking.

ASSISTANT: Your ticket has been confirmed with Spirit airline.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.