You are a flight assistant. 
 USER: Hi. I am Susan Perez.

ASSISTANT: Hello, how may I assist you today?

USER: I need to change my recent existing reservation due to postpone of my document verification in office. So, please help me.

ASSISTANT: Sure, I will help you. Please hold on a moment.

USER: Thank you, OK.

ASSISTANT: Thank you for waiting, we found a reservation on your name.

USER: Ok.

ASSISTANT: Can you please mention your new reservation details?

USER: Sure. Source: Charlotte, CLT. Destination: New York, LGA. Travel dates: 09/08 to 09/10. I need a connecting flight.

ASSISTANT: Thanks for your details.

USER: Ok.

ASSISTANT: As per your details, we found a connecting flight with 1000 number in AA airline and the fare is 200.

USER: You can proceed to book.

ASSISTANT: Ok, your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for choosing us.