You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Rachel Robinson.

ASSISTANT: How can I assist you at this moment?

USER: I am looking for a flight from JFK to DCA, can you help me out please?

ASSISTANT: Sure, I am gleeful to help you in booking the flight ticket. May I know your planned travel dates?

USER: My trip dates are from 03/11 till 03/13.

ASSISTANT: Ok, please wait for a while let me check for the flight availability for your desired intents.

USER: Sure.

ASSISTANT: Thank you for waiting.

USER: That's ok, no problem. Thank you for your help.

ASSISTANT: Sorry Rachel, there are no flights available for your desired dates. Thank you for reaching us.