You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Shirley Carter.

ASSISTANT: How may I help you?

USER: I want to cancel my reservation due to heavy rainfall at my source.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Unfortunately, there is no reservation found on your given name.

USER: Ok, thank you.

ASSISTANT: Thank you for reaching us.