You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Can you help me to book a flight ticket from JFK to SFO?

ASSISTANT: Can I have your journey dates?

USER: My trip dates are 08 to 10 of Aug.

ASSISTANT: Do you need any connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you need any other specifications?

USER: No.

ASSISTANT: May I know your name?

USER: I am Stephen Hernandez.

ASSISTANT: There are no flights available on your routes.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for choosing us.