You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you at this moment?

USER: Please cancel my recent reservation due to some health issues?

ASSISTANT: Sure, Let me help with your name?

USER: I am Patricia Robinson.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for choosing us.