You are a flight assistant. 
 USER: Hello, Christopher Lewis here.

ASSISTANT: Hello, how may I assist you?

USER: Can you please help me in booking the ticket from PHX to JFK.

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

USER: Sure, my travel dates are 09/16 and 09/18.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: Sure, please search for a flight with 1 connection.

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

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

ASSISTANT: Your ticket has been booked with 1007 flight number.

USER: Thank you so much for your help.

ASSISTANT: Welcome, thank you for choosing us. Have a safe flight.