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

ASSISTANT: Hello, how can I aid you?

USER: I would like to cancel my recent reservation, due to personal problems. Can you please help me?

ASSISTANT: Ok, please wait I will revert you.

USER: Sure.

ASSISTANT:  Sorry, no reservation was found on your name.

USER: Ok, not an issue. Thank you for your help.

ASSISTANT:  Thank you for availing us.