You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: My final exams dates are postponed, can you please help me for changing the existing reservation?

ASSISTANT: I will help you with that.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: Sure, my name is Charles Roberts.

ASSISTANT: May I know your travel dates?

USER: The travel dates are 03/19 to 03/21.

ASSISTANT: Can you please share your airport codes to proceed further?

USER: The corresponding airport codes are from NY-JFK to MI-DTW.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: I found a ticket for you with price 100, connection is 1. Shall I proceed the booking?

USER: Yes, proceed with my booking.

ASSISTANT: I confirmed your ticket.

USER: Thank you for your help.

ASSISTANT: Thank you.