You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I need to attend a business meeting at Chicago, can you please help me in booking a flight ticket from DCA to ORD?

ASSISTANT: Please provide your trip dates.

USER: Thank you, my travelling dates are Oct 11th and Oct 13th.

ASSISTANT: Do you need any connection limit?

USER: I prefer a flight which has maximum a single connection.

ASSISTANT: Do you have any other specifications?

USER: I don't have any more specifications.

ASSISTANT: May I know your name?

USER: My name is Virginia Parker.

ASSISTANT: There is a connecting flight in economy class with Delta Airlines and ticket fare of 200. Shall I proceed?

USER: Please, proceed by booking.

ASSISTANT: Your ticket is confirmed in flight 1025.

USER: Thank you for the service.

ASSISTANT: Thank you for choosing us.