You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Susan Perez here.

ASSISTANT: How may I assist you?

USER: Can you please help me with cancelling my reservation?

ASSISTANT: Yes, I can help you. Give me a moment.

USER: Sure, take our time.

ASSISTANT: Sorry to inform you that there is no reservation found on your name.

USER: Oh! That's very sad to know form your side. Anyways, thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: Welcome.