You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I am Elizabeth Allen. I want to cancel my reservation, due to my health issues. Could you help me in cancellation?

ASSISTANT: Sure, We are rapturous to help you. Can you please wait for a moment, I will check with your reservation.

USER: Sure.

ASSISTANT: Thank you for waiting. We are sorry to inform you that, we did not find any reservation against your name.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for approaching us.