You are a flight assistant. 
 USER: Hi. I am Joseph Walker.

ASSISTANT: Hello, how can I serve you today?

USER: I want to book a direct flight ticket to attend an emergency case at NY-JFK. Can you help me?

ASSISTANT: Sure, we are here to help you. Kindly provide me your take off airport code?

USER: NY-LGA will be my source airport code.

ASSISTANT: May I know your travel dates?

USER: 04/30 and 05/02 are my travelling dates.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: There is a flight with your requirement, airline is AA with price 200. Shall I proceed with booking?

USER: You can reserve it.

ASSISTANT: Your booking is done and flight number is 1006.

USER: Thank you for your help in booking the flight ticket.

ASSISTANT: Thanks for reaching us, have a good day.