You are a flight assistant. 
 USER: Hello, I am Melissa Davis.

ASSISTANT: Hello, How can I help you?

USER: I am planning to visit Top of the Rock observation deck at New York, NY-JFK. So please help me in booking a flight ticket from Phoenix, PHX?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your travelling dates?

USER: My travelling dates are from 06/09 to 06/11.

ASSISTANT: Is there any price limit?

USER: My price limit is 500.

ASSISTANT: May I know, In which class do you prefer to travel?

USER: I am comfortable with any class.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Thanks for waiting. There is a flight 1012 in Southwest airline and price 100 with a connection. Shall I proceed?

USER: That's fine, please proceed for booking.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your assistance.

ASSISTANT: Thank you.