You are a flight assistant. 
 USER: Hi,. I am Ronald Young.

ASSISTANT: Hello, how can I help you?

USER: I want to change my reservation due to my event has been cancelled.

ASSISTANT: Sure, wait a  minute.

USER: Can you please help me with that?

ASSISTANT: Sorry to tell that there is no reservation on your name.

USER: Thank you for your information.

ASSISTANT: Thank your for approaching us.