You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: Myself Larry Lewis, my weekend planned had got cancelled, so I want to cancel my reservation. Can you cancel the ticket for me?

ASSISTANT: Sure, I am here to help you with this. Sorry Lewis, there is no reservation found as per your name to cancel it.

USER: Ok, not a problem. Thank you for assisting me.

ASSISTANT: You are welcome always.