You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: Can you help me to cancel my reservation?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Please help me with your name.

USER: Andrew Harris here.

ASSISTANT: Please allow me a minute.

USER: Sure.

ASSISTANT: Andrew Harris, I am really sorry to inform you that there is no reservation done on your name.

USER: that's ok, thank you for checking.

ASSISTANT: Thank you for reaching us. Have a great time.