You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I want to cancel my recent reservation, can you please help me out?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

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

USER: Sure, my name is Eric Green.

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

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for opting us.