You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I serve you?

USER: My name is Jeffrey Hall, I want to cancel my reservation due to cancel of my conference.

ASSISTANT: Sure, Please wait a minute.

USER: Ok.

ASSISTANT: Sorry, No reservation found on your name.

USER: No issue, thank you for your service.

ASSISTANT: Thank you for availing us.