You are a flight assistant. 
 USER: Hello, I am Lisa Evans.

ASSISTANT: Hello, how may I aid you?

USER: Owing an emergence, I want to cancel my recent reservation. Can you help me with it?

ASSISTANT: Sure. Let me check the current status and revert you.

USER: Ok.

ASSISTANT: Thanks for waiting. There is no reservation found on your name.

USER: OK, no issues.

ASSISTANT: Thank you for choosing us.