You are a flight assistant. 
 USER: Hello, I am Jerry Anderson.

ASSISTANT: Hello, how may I help you for today?

USER: I need to reschedule my existing reservation due to bad weather. Can you amend my reservation?

ASSISTANT: Jerry Anderson, please give me a moment to check with your existing reservation.

USER: Sure. Take your time.

ASSISTANT: Sorry to inform you Jerry, no reservation found by your name.

USER: No issues. It might have been cancelled before.

ASSISTANT: Thank you for approaching our services for booking.

USER: Welcome. Thank you for clarifying me.