You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Actually, I want to cancel my reservation which is done recently due to some problem, can you please help me out?

ASSISTANT: Yes, I can help you. Can I know your name?

USER: Thank you. Sure, my name is Amy White.

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

USER: That's fine.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your service.