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

ASSISTANT: Hello, how can I help you?

USER: Due to some emergency work, I need to cancel my reservation. Can you please help me?

ASSISTANT: Sure. Please, wait for a while. Thank you for being patience, there is no reservation found on your name.

USER: No problem. Thank you.

ASSISTANT: Thank you for availing us.