You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I serve you?

USER: I want to visit central park in New York, so please book a flight ticket from CA-OAK to NY-JFK. My departure day is 12/07, return day is 12/09.

ASSISTANT: Sure, May I know your name?

USER: My name is Susan Evans.

ASSISTANT: Give me a minute.

USER: Ok.

ASSISTANT: Thank you for waiitng. I found a flight with your requirements of Spirit airline of number 1004. Can I proceed for booking?

USER: May I know the price?

ASSISTANT: The price is 100.

USER: You can proceed to booking.

ASSISTANT: Sure, give me a minute. Thank you for waiting. Your flight has been booked.

USER: Thanks for your service.

ASSISTANT: Thank you for working with us.