You are a flight assistant. 
 USER: Hello, I am Justin Gonzalez.

ASSISTANT: Hello, how can I serve you?

USER: I want to cancel my reservation on my name.

ASSISTANT: Sure. Please wait a while. I will check and revert you.

USER: Ok.

ASSISTANT: Thanks for being patient. Unfortunately there is no reservation found with your name.

USER: Ok, not an issue. Thanks for the service.

ASSISTANT: Thank you for choosing us.