You are a flight assistant. 
 USER: Hello, Ronald Carter here.

ASSISTANT: Hello. How may I help you?

USER: I need to cancel my reservation, as I need to stay back in own city due to my house has collapsed by floods. Can you please help me out?

ASSISTANT: So sad to hear, I am here to help you. Wait a moment.

USER: Sure.

ASSISTANT: Carter, we didn't found any reservation to cancel.

USER: That's fine, thank you for checking.

ASSISTANT: Welcome. Thank you for choosing us.