You are a flight assistant. 
 USER: Hi. I am Anna Thomas.

ASSISTANT: Hello, how can I help you?

USER: I need to cancel my reservation, due to health issue. Can you help me out?

ASSISTANT: Sure, I am here to help you.

USER: Ok.

ASSISTANT: Please stand by.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry to say no reservation found on your name.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for reaching us, have a nice day.