You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you for the day?

USER: I would like to change my existing reservation, can you please help me out?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: My name is Kevin Johnson.

ASSISTANT: We found a reservation on your name, can you please let me know your journey dates?

USER: My planned journey dates are on Feb 22 and Feb 24.

ASSISTANT: Kindly assign your airport codes?

USER: My airport codes are EWR and MCO.

ASSISTANT: Do you prefer any way station in between journey?

USER: Yes, I need a connecting flight.

ASSISTANT: Is there any more specifications?

USER: No, thank you for asking.

ASSISTANT: We found a connecting flight with JetBlue airlines, flight number 1024, price is 200 in economy class.

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.