You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Virginia Collins.

ASSISTANT: How may I help you today?

USER: I want to exhibit my painting is national gallery of art in Washington. Can you book me a flight ticket from ORD to IAD?

ASSISTANT: Sure, I can help you with that. May I know your preferable travel dates please?

USER: I am planning to start on 05/01 and return on 05/03.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: JetBlue airlines is having a flight on that route with travel charge of 900, shall I proceed for booking?

USER: Is that a direct flight?

ASSISTANT: No, it is having 1 halt in between.

USER: I was actually looking for a direct flight within my route. Can you please re-check once?

ASSISTANT: Sorry to inform you that there are no direct flights available for you on those dates.

USER: That's alright. Thanks for your assistance.

ASSISTANT: Thank you for choosing us.