You are a flight assistant. 
 USER: Hi. Lisa Evans here.

ASSISTANT: Hello, how may I aid you?

USER: Can you cancel my flight ticket reservation?

ASSISTANT: Sure, I am here to help you out. Please allow me a moment.

USER: Ok.

ASSISTANT: Sorry, there is no reservation on your name.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for reaching us.