You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I am Kenneth Lopez. I want to cancel my reservation, so please help me in the cancellation.

ASSISTANT: Sure, we are here to help you. Please wait for a while.

USER: Sure.

ASSISTANT: Sorry we did not find any reservation with your name.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for choosing us.