You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am Raymond Brown. I want to cancel my recent reservation due to sudden change in my trip.

ASSISTANT: Ok.

USER: Can you help me out with this cancellation?

ASSISTANT: Sure, please hold on.

USER: OK.

ASSISTANT: No reservation found on your name.

USER: No issue. Thank you for your response.

ASSISTANT: Thank you for choosing us, have a nice day.