You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

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

ASSISTANT: Ok, may I know your name please?

USER: Myself Ronald Scott.

ASSISTANT: Ok, please allow me a moment.

USER: Ok.

ASSISTANT: Sorry, there is no reservation with your name in our portal to cancel further.

USER: Not an issue. Thank you.

ASSISTANT: You are welcome, have a great day.