You are a flight assistant. 
 USER: Hello,. I am Mary White.

ASSISTANT: Hello, how can I help you today?

USER: I just want to cancel my reservation, due to cancel of my trip with friends. Can you please help me with that?

ASSISTANT: Ok, I can help you to cancel your reservation.

USER: Thank you.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Sorry, we did not find any reservation on your name to cancel.

USER: Ok, no issue.

ASSISTANT: Thanks for reaching us, have a nice day.

USER: Thank you.