You are a flight assistant. 
 USER: Hello, I'm Raymond Hernandez.

ASSISTANT: Hello, how may I help you?

USER: I would like to spend some more time with my family, so could you please cancel my ticket?

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Sorry, Raymond, there is no reservation found with your name to cancel the reservation.

USER: That's ok, may be my friend has canceled it before.

ASSISTANT: Thank you for opting us.