You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I would like to book my ticket from New York, JFK to OAK. Can you please help me with booking a flight ticket?

ASSISTANT: Sure. Tell me your travel dates please?

USER: My planned travel dates are from Mar 24 to Mar 26.

ASSISTANT: Are you looking for a stopover in your journey?

USER: I need a stopover in between my journey.

ASSISTANT: Any other preferences?

USER: No, thank's for asking.

ASSISTANT: Please wait.

USER: Sure, I will wait for your response.

ASSISTANT: Thanks for waiting. But I am sorry to say that there are no flights available.

USER: That's ok, no problem.

ASSISTANT: May I know your name please?

USER: Sure, myself Helen Hall.

ASSISTANT: Thank you.

USER: Thank you for your service.