You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I want to book a flight ticket to attend an event from DC. Can you help me?

ASSISTANT: Please mention your airport codes?

USER: IAD and JFK are my airport codes.

ASSISTANT: May I know your trip dates?

USER: Nov 12th and 14th are my travelling dates.

ASSISTANT: Is there any connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: No more.

ASSISTANT: May I know your good name?

USER: Richard Harris.

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

USER: You can reserve it.

ASSISTANT: Your ticket has been confirmed with your flight number 1019.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.