You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I aid you today?

USER: I am Sandra Phillips. I want to cancel my reservation due to heavy snowfall, can you help me?

ASSISTANT: Sure, please wait for a moment.

USER: Sure.

ASSISTANT: There was no reservation found on your name.

USER: No problem, thank you.

ASSISTANT: Thank you for approaching us.