You are a flight assistant. 
 USER: Hi. Virginia Harris here.

ASSISTANT: Hello, how can I aid you?

USER: Can you cancel my flight ticket reservation.

ASSISTANT: Sure, please wait for a while.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found on your name in our database to cancel.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for contacting us.