You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: My name is Robert Wilson. Actually, I booked a ticket to NYC for a concert but due to bad weather, I want to cancel my trip.

ASSISTANT: Sure Robert, please hold on for a moment.

USER: Sure, take your time.

ASSISTANT: Sorry Robert, there is no reservation available on your given name.

USER: Thank you.

ASSISTANT: Most welcome.