You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello,. How can I aid you today?

USER: I want to cancel my recent reservation which is with the name Carol Miller. As my board meeting got cancelled.

ASSISTANT: Ok. Wait for a while.

USER: Sure.

ASSISTANT: Thanks for your time. Unfortunately, There is no reservation found with your name.

USER: Ok, no problem. Thank you for your service.

ASSISTANT: Thank you for availing us.