You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: I want to book  a flight ticket to attend an cultural fest at DC. Can you help me?

ASSISTANT: Sure, may I know your name please?

USER: Christopher Parker.

ASSISTANT: Please share your airports codes?

USER: IAD and DCA are my airport codes.

ASSISTANT: Ok, may I know your travelling dates please?

USER: 06/14 and 06/16 are my travelling dates.

ASSISTANT: Ok, may I know your connection limit please?

USER: I am comfortable with any connection.

ASSISTANT: Do you have any other specifications please?

USER: No.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: There is a connecting flight of fare 1100 with business class in United airline, shall I proceed?

USER: You can reserve it.

ASSISTANT: Ok, your reservation has been confirmed with flight number 1029.

USER: Thank you.

ASSISTANT: You are welcome.