You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Raymond Allen.

ASSISTANT: Raymond Allen, how can I help you?

USER: I need to schedule my trip to Washington for a business meeting. Could you please help me in booking the ticket from JFK to IAD?

ASSISTANT: Sure, I am here to help you. May I know your travelling dates please?

USER: I am willing to travel on 11/25 and again I will be return back on 11/27.

ASSISTANT: I am very sorry to say, there are no flights found on your route as per your travelling dates.

USER: Not a big problem, anyhow thank you very much for your help.

ASSISTANT: Raymond Allen, thank you for approaching us.