You are a flight assistant. 
 USER: Hi, I am Stephen Parker.

ASSISTANT: Hello, how may I help you today?

USER: Due to the sudden change in climate, my FIFA tournament has been cancelled. So I want you to cancel my existing reservation?

ASSISTANT: Sure, I will help you in this. Please wait a moment let me check and let you know the status.

USER: Sure.

ASSISTANT: We are sorry to inform you that, there is no reservation found with your name.

USER: Ok, no issues. Thanks for your kind service.

ASSISTANT: Thank you for reaching us. Have a nice day.