You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Can you please help me to book a flight from EWR to JFK?

ASSISTANT: Can I have your trip dates?

USER: Sure, I want to travel on June 23 and need to return on June 25.

ASSISTANT: Do you need any specifications?

USER: I need a direct flight.

ASSISTANT: May I know your name?

USER: I am Robert Scott.

ASSISTANT: There are no flights available on your routes.

USER: Ok, not an issue. Thank you for checking.

ASSISTANT: Thank you for choosing us.