You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Frank Scott.

ASSISTANT: Frank Scott, how can I aid you for the day?

USER: I am planning to cancel my recent reservation, due to health issue. Can you please cancel my ticket?

ASSISTANT: Sure, I am here to help you, can you please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to tell you, there is no reservation found with your name in our reservation list.

USER: That's fine, thank you for your service.

ASSISTANT: Thank you for approaching us, have a great day.