You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: My name is Nancy Miller, I want to book a flight on 01/21 to attend a meeting. Can you book a flight within fare of 200?

ASSISTANT: Sure, I will help you. May I know your airport codes?

USER: My source airport code is NC-CLT and my destination is NY-JFK.

ASSISTANT: When you will return to CLT?

USER: I will return on 01/23.

ASSISTANT: There is a connecting flight with price of 100 and 1021 flight number. Shall I proceed?

USER: Please proceed with booking.

ASSISTANT: Your booking has been confirmed with Jet Blue airline.

USER: Thank you for helping me with booking.

ASSISTANT: Thank you for availing us.