You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am Carol Thomas. I want to cancel  my reservation, due to health issue. Can you help me out?

ASSISTANT: Sad to hear that. Please let me check.

USER: Sure.

ASSISTANT: Sorry, there is no ticket showing on your name.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for reaching us.