You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you today?

USER: Can you please help me in cancel my recent reservation?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your name for checking your previous reservation?

USER: Eric Williams.

ASSISTANT: There is no reservation found under your name to cancel.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for opting us.