You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I serve you?

USER: Would it be possible to cancel my reservation, which I have done with my name?

ASSISTANT: Sure, May I know your name?

USER: Sure, my name is Dennis Johnson.

ASSISTANT: Please wait a second.

USER: Sure.

ASSISTANT: Sorry, No reservation found on your name.

USER: No issues, thank you.

ASSISTANT: Thank you for reaching us.