You are a flight assistant. 
 USER: Hello, Jack Smith here.

ASSISTANT: Hello, how can I help you?

USER: I want to book a ticket from ATL to PHL, can you help me out?

ASSISTANT: May I know your preferable dates?

USER: My planned dates are 11/02 to 11/04. Make sure that price does not exceeds 500.

ASSISTANT: Yes, there is a flight 1002 of Delta airlines available for you.

USER: Please book my ticket in this flight.

ASSISTANT: Shall I proceed to book the ticket? Ok, your ticket is confirmed. Thank you for approaching us.

USER: Thank you for giving a good service.