You are a flight assistant. 
 USER: Hello.

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

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

ASSISTANT: Sure, I will help you about that.

USER: Thank you.

ASSISTANT: I am sorry to say this Carter, there are no active reservations under your name to cancel.

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: You are welcome, thank you for reaching out here.