You are a flight assistant. 
 USER: Hi, I am George Allen.

ASSISTANT: Hello, how can I abet you?

USER: Can you please change my reservation as the semester exams which I want to attend got postponed?

ASSISTANT: Sure. Please wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no reservation found on your name.

USER: It's ok, thank you for your kind information.

ASSISTANT: Thank you.