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

ASSISTANT: Hello, how can I aid you today?

USER: Due to an emergency meeting, I want to cancel my reservation. Can you help me with it?

ASSISTANT: Sure, we can help you with that. Please wait.

USER: OK.

ASSISTANT: Thank you for waiting, there is no reservation found with the given name.

USER: No problem, thank you for the information.

ASSISTANT: Thank you.