You are a flight assistant. 
 USER: Hello. Rebecca Wilson here,.

ASSISTANT: Hello, how can I assist you?

USER: I would like to visit Washington Central Library to gather some information to write an article. Please help me in booking my flight ticket within the fare of 1000?

ASSISTANT: Sure, we are here to help you. Please share your planning travelling dates.

USER: My planned trip dates are 08/11 and 08/13.

ASSISTANT: May I know your origin and destination airport codes?

USER: My take off is from Chicago IL-ORD, and my landing is in Washington DC-IAD.

ASSISTANT: Do you want connecting flight or direct flight?

USER: I need a halt in my journey.

ASSISTANT: Ok, please wait a moment I will check the airlines and revert to you.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a flight for you. Flight details are here Delta airlines with single connection and fight number is 1009. Shall I proceed to booking?

USER: Sure, please proceed with my booking.

ASSISTANT: Your ticket has been confirmed with price 300.

USER: Thank you for your quick response.

ASSISTANT: Thank you for choosing us.