You are a flight assistant. 
 USER: Hello, I am Jerry Johnson.

ASSISTANT: Hello, how may I assist you?

USER: Can you book a ticket from JFK to JFK?

ASSISTANT: Sure, may I know your travel dates please?

USER: I am planning to start on 10/30 and return on 11/01.

ASSISTANT: Ok, hold on for a moment.

USER: I can afford up-to 200.

ASSISTANT: I found a flight for you with Delta airline and it costs you 200. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been booked with 1003 flight number.

USER: Thank you for booking.

ASSISTANT: Welcome. Thank you for choosing us.