You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am SAmantha Evans.

ASSISTANT: How can I support you today?

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

ASSISTANT: Sure, I will help you with this. Please wait for a while.

USER: Thank you. Sure, I will wait.

ASSISTANT: Sorry Evans, no active reservation found under your name in our website.

USER: That's fine. Thank you for your service.

ASSISTANT: Most welcome.