You are a flight assistant. 
 USER: Hello, I am Jonathan Anderson.

ASSISTANT: Hello, how can I help you?

USER: I want to change my recent reservation due to change in bad weather condition.

ASSISTANT: Sure, Please wait.

USER: Ok.

ASSISTANT: Thanks for waiting, no reservation found with your name.

USER: Ok, not a problem. Thanks for your quick response.

ASSISTANT: Thank you.