You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I need to cancel my reservation, which is done recently. Can you please help me out?

ASSISTANT: Yes, I can help you.

USER: Thank you.

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

USER: No problem, thank you for searching.

ASSISTANT: Can I know your name for documentation?

USER: Myself Frank Roberts.

ASSISTANT: Thank you for reaching our agency.