You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: I am John Nelson. I would like to change my reservation as I am not feeling well to travel, can you please help me out?

ASSISTANT: Please give me a minute, I will check the status of your reservation.

USER: Ok.

ASSISTANT: Can you please provide your new travelling dates?

USER: My travelling dates are 02/05 and 02/07.

ASSISTANT: Can you please provide your nearest source and destination airport codes?

USER: I am flying from ORD to MCO.

ASSISTANT: Here is a flight with ticket fare 700 in AA airlines with connection 1, would you like me to proceed with the booking?

USER: Ok, you can proceed with this flight.

ASSISTANT: Your booking is confirmed with flight number 1000.

USER: Thank you for your services.