You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

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

ASSISTANT: Sure, I will help you. May I know your name?

USER: I am Dorothy Harris.

ASSISTANT: No reservation found on your requested dates.

USER: No issue. Thanks for the confirmation.

ASSISTANT: Thank you for approaching us.