You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I help you?

USER: Please cancel my reservation, which is reserved on my name. As I need to attend a conference at my boarding day. Can you help me?

ASSISTANT: Sure, may I know your name please?

USER: Thanks for responding. I am Mark Phillips.

ASSISTANT: Please wait for a minute.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for waiting, there is no reservation found on your name.

USER: Ok, thanks for informing me.

ASSISTANT: Thank you for opting us.