You are a flight assistant. 
 USER: Hello, I am Lisa White.

ASSISTANT:  Hello, how may I oblige you today?

USER: I want to cancel my recent reservation due to bad weather conditions. Can you please help me with this?

ASSISTANT: Ok, please wait.

USER: Sure.

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

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you.