You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Matthew Lopez.

ASSISTANT: How can I help you?

USER: Could you do me a favour in cancelling my recent reservation?

ASSISTANT: Yes, give me a moment.

USER: Ok.

ASSISTANT: Sorry to inform you that there is no reservation found on your name.

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

ASSISTANT: Thank you for reaching us.