You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I aid you today?

USER: I am Carolyn Anderson.

ASSISTANT: Ok.

USER: Due to terrorist attack at New York, I want to book a flight ticket. I want to book a ticket from NY-JFK to CA-SFO.

ASSISTANT: Sure, May I know the travelling dates ?

USER: My depart is on 05/25 and arrival is on 05/27. And with price limit 200.

ASSISTANT: Wait for a minute.

USER: Ok.

ASSISTANT: There is  a flight which matches your requirements the flight details are flight number : 1015, flight name : AA. Shall I proceed with booking?

USER: You can proceed with booking.

ASSISTANT: You booking is done.

USER: Thank you.