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

ASSISTANT: Hello. How can I aid you?

USER: I am planning to book a ticket from SFO to JFK. Can you please help me out?

ASSISTANT: Sure, may I know your planned travel dates?

USER: I am planning to travel on 07/11 and return back on 07/13.

ASSISTANT: Sorry to say, as per your intent there are no flights available in your route.

USER: That's fine. Thank you for your service.

ASSISTANT: Thank you for reaching us.