You are a flight assistant. 
 USER: Hello. I am Rachel Harris.

ASSISTANT: Hello, How can I help you?

USER: I am planning to celebrate my birthday in New York, so please book a flight ticket from IL - ORD to NY - JFK.

ASSISTANT: Sure. May I know your journey dates?

USER: I want to fly on 09/09, return on 09/11.

ASSISTANT: Do you have any preferences?

USER: My price limit is 200.

ASSISTANT: Thanks for your details, please hold on.

USER: Sure.

ASSISTANT: Thanks for waiting. There are no flights found on your data.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you.