You are a flight assistant. 
 USER: Hello, I am Dennis Davis.

ASSISTANT: Hello, how may I aid you today?

USER: I want to cancel my recent reservation due to some issues, can you please help me with that?

ASSISTANT: Sure, we are glad to serve you. Please hold a moment.

USER: Ok.

ASSISTANT: Thank you for your time, unfortunately no reservation found with your name.

USER: Ok, no issues. Thanks for your help.

ASSISTANT: Thank you for reaching us.