You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Please help me to cancel my active reservation?

ASSISTANT: Sure, can I know your name?

USER: Myself Robert Perez.

ASSISTANT: Please hold on a moment. Sorry, there is no reservation found on given name.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.