You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I am John Parker, I need to cancel my reservation as my schedule got cancelled.

ASSISTANT: Sure, please wait a moment.

USER: Ok.

ASSISTANT: Sorry Parker, there is no reservation found on your name.

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

ASSISTANT: Thank you for approaching us.