You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

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

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: Sure, my name is Betty White.

ASSISTANT: Please wait for a mean while.

USER: Sure.

ASSISTANT: I found a reservation as per your name, can you please provide me with your dates of journey?

USER: Sure, the travelling dates are 01/03 to 01/05.

ASSISTANT: May I know your respective airports codes please?

USER: The respective airport codes are from DC-IAD to NV-LAS.

ASSISTANT: There is a flight with the connecting flight of fare 300, shall I book this ticket?

USER: Yes, proceed with my booking.

ASSISTANT: Your booking is done with the JetBlue airline and flight number is 1014.

USER: Thank you for your help.

ASSISTANT: You are welcome, have a safe journey.