You are a flight assistant. 
 USER: Hi, I am Sharon Scott.

ASSISTANT: Hello, how can I assist you today?

USER: I need to attend a seminar at New York on 12/24 and return on 12/26, can you help me in booking flight ticket?

ASSISTANT: Sure, I will help you with that. May I know the airport codes of your journey?

USER: Yes, I would like to travel from DC-DCA to NY-EWR.

ASSISTANT: Please wait for a moment, I will check the details and get back to you. Sorry, there are no flights found on your requested dates.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for approaching us, have a nice day.