You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Ronald Gonzalez here. I want to cancel my reservation due to some problem, can you please help me in that?

ASSISTANT: Sure, just a moment please. I am sorry no reservation found on your name.

USER: Ok, no problem, it might went wrong while booking. Thank you for checking out.

ASSISTANT: Thank you for choosing us.