You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I am Carolyn Nelson from New York. I need your help in booking of a flight ticket from JFK to EWR for an important business meeting, can you please help me out with booking of a flight ticket on those locations?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your traveling dates please?

USER: Thank you for accepting my request, I want to take off on 05/20 and please confirm my return ticket also on 05/22.

ASSISTANT: Sorry, there are no flights found in our database.

USER: Oh! It's ok no problem, I will choose another agency. Thank you for your service.

ASSISTANT: Thank you for choosing us.