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

ASSISTANT: Hello. How can I help you?

USER: I want to attend to my cousin marriage in New York, can you assist me for booking a flight ticket with the price limit of 200?

ASSISTANT: Sure, please provide me your journey details?

USER: My source is Washington, DC - DCA. Destination is NY - EWR. My travelling dates are from 01/30 to 02/01.

ASSISTANT: Sorry, no flights are available on your scheduled dates.

USER: Ok, no problem.

ASSISTANT: Thank you for availing us.

USER: Thanks for your information.