You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Due to heavy rain, I want to cancel my reservation. Can you help me?

ASSISTANT: Sure, can I know your name?

USER: Dorothy Baker here.

ASSISTANT: Please hold on a moment.

USER: Ok.

ASSISTANT: Sorry, there are no reservation found on given name.

USER: No issue, Thanks for the information.

ASSISTANT: Thank you for reaching us.