You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: My name is Michael Moore. I want to cancel my recent reservation due to cancel my conference.

ASSISTANT: Sure, please wait a minute.

USER: Ok, I will wait.

ASSISTANT: Sorry to say you that there is no reservation with your name.

USER: Not an issue.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your quick response.