You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Please help me to book a flight ticket from JFK to ATL.

ASSISTANT: Can I have your journey dates?

USER: My travel dates are 03 to 05 of Feb.

ASSISTANT: Do you need any specifications?

USER: I need a connecting flight.

ASSISTANT: May I know your name?

USER: I am Nicholas Lopez.

ASSISTANT: There are no flights available on your routes.

USER: Oh! that very sad to hear, thank you.

ASSISTANT: Thank you for opting us.