You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I help you?

USER: My name is Scott Collins. My business meeting was postponed, so I want to change my existing reservation.

ASSISTANT: Sure. Please wait for a moment.

USER: Sure.

ASSISTANT: While I check the details, and let you know.

USER: Ok.

ASSISTANT: Yes, I found a reservation. Please provide the new flight details?

USER: My origin source from PA - PHL to GA - ATL, and my travelling dates from 12/22 to 12/24.

ASSISTANT: I found a flight with price 200 and one connecting flight.

USER: Let me know more details.

ASSISTANT: It is Delta airlines, 1004 flight number.

USER: Ok, confirm my booking.

ASSISTANT: Sure. Glad to inform you that, your ticket is been confirmed.

USER: Thank you, for your good service.

ASSISTANT: Thank you.