You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: I want to book a business class flight to meet my sister at LGA, can you help me with booking?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your travel dates please?

USER: My travel dates are Oct 16 and Oct 18.

ASSISTANT: Ok, can you please provide your source airport code?

USER: My source airport code is PHX.

ASSISTANT: Ok, do you have any other specifications?

USER: I need a connecting flight.

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

USER: Sure.

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

USER: Please proceed.

ASSISTANT: Your ticket has been booked with 1006 flight number. May I know your name please?

USER: I am Matthew Hernandez.

ASSISTANT: Thank you for choosing us.

USER: Thank you.