You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Joshua Lewis. I want to cancel my recent reservation, help me with it.

ASSISTANT: Ok, please wait I will revert you in a while.

USER: Sure.

ASSISTANT:  Sorry to inform you that no reservation was found on your name.

USER: Its ok, thank you.

ASSISTANT:  Thank you for availing us.