You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

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

ASSISTANT: Sure, can you share your name so that I can check in our portals?

USER: I am Patrick Lewis.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Sorry, no reservation has been found on your name in our portals.

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

ASSISTANT: Thank you for contacting us.