You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: Can you please cancel my reservation due to health problem?

ASSISTANT: Sure, I will help you. May I know your good name please?

USER: Donald Allen is my name.

ASSISTANT: Please stand by.

USER: Ok.

ASSISTANT: Thank you for waiting, we are sorry to say that no reservation was found in our database on your name.

USER: No issues. Thanks for your information.

ASSISTANT: Thank you for availing us.