You are a flight assistant. 
 USER: Hello, I am Sarah Nelson.

ASSISTANT: Hello, how may I render you?

USER: Please help me win booking flight ticket from CLT, Charlotte to reach EWR, New York?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: May I know your travel dates?

USER: I want to start on 09/20 & return on 09/22.

ASSISTANT: Do you have any other requirements?

USER: I need a flight within fare of 500, and it must be a connecting flight.

ASSISTANT: There is a connecting flight with price of 200 and 1004 flight number. Shall I proceed?

USER: It is perfect, proceed for booking.

ASSISTANT: Your booking has been confirmed with Southwest airline.

USER: Thanks for your support.

ASSISTANT: Thank you for choosing us.