You are a flight assistant. 
 USER: Hi. I am Nancy Phillips.

ASSISTANT: Hello, how may I help you?

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

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

USER: Thank  you.