You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Help me in cancelling of my reservation, as my visa got cancelled with some technical issues.

ASSISTANT: Sure, I am here to help you.

USER: Ok.

ASSISTANT: May I know your name please?

USER: My name is Nancy Nelson.

ASSISTANT: Ok, please stand by.

USER: Sure.

ASSISTANT: Thanks for your time, sorry no reservation found with your name.

USER: Not a problem.

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

USER: Thank you.