You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

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

ASSISTANT: Sure, may I know your name?

USER: Barbara Allen here.

ASSISTANT: Please stand by, I will revert to you.

USER: Ok.

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

USER: No problem, Thank you.

ASSISTANT: Thanks for availing us.