You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: Raymond Allen here. I would like to book a ticket from JFK to DCA, can you please help me with that?

ASSISTANT: Sure, can you please let me know your dates of journey?

USER: The travel dates are from 11/25 to 11/27.

ASSISTANT: Ok, please wait for a moment.

USER: I want a direct flight.

ASSISTANT: Sorry Allen, there is no flight found as per your travelling details.

USER: That's ok, thank you for your help.

ASSISTANT: You are welcome always.