You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How may I be of your assistance?

USER: I am Kevin Thompson, can you help me to change my reservation as my plan to meet my friend is postponed.

ASSISTANT: Ok. I will help you in that. I have checked with reservation list, and glad to inform you that, we can change your flight. Please share the current details of your journey.

USER: Sure. My source airport is NC-CLT and destination is NY-EWR. I need a flight with one connection.

ASSISTANT: Ok. What are your planned dates?

USER: I will travel on 07/20 and return on 07/22. My budget for ticket is 1000.

ASSISTANT: Ok, please give me moment. Now, you can go with JetBlue airline.

USER: Sure.

ASSISTANT: Your flight number is 1024. May I proceed to book? because requirements are with in your request.

USER: Sure.

ASSISTANT: Thanks for availing us, Your ticket is confirmed.

USER: Thanks for helping me.