You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you at this moment?

USER: Can you please help me to cancel my father's reservation? Yesterday night he met with an accident.

ASSISTANT: Sad to hear that, we do provide the cancellation services also. May I know your father's good name to check the database for finding reservation status?

USER: His name is Matthew Gonzalez.

ASSISTANT: Wait a moment please, let me check the current status of your father's reservation and get back to you.

USER: Sure, I am waiting for your response.

ASSISTANT: Sorry to inform you, there is no active reservation found with the name Matthew Gonzalez in our database to cancel it.

USER: Not an issue, may be my brother have cancelled the reservation.

ASSISTANT: May be that is the reason I couldn't find your provided father's reservation.

USER: Yes, anyway thank you for the information.

ASSISTANT: Thank you for utilising our service, keep utilise our service in future too.