You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Myself Dennis Lopez. For some issues I want to cancel my reservation, can you please help me?

ASSISTANT: Sure, I will help you. Sorry, there is no active reservation found on your name in our data base to cancel.

USER: It's ok. Thank you for the information.

ASSISTANT: Thank you for approaching us.