You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am Rebecca Hernandez, my work got postponed. So, I would like to cancel my reservation.

ASSISTANT: Ok, please wait for a while.

USER: Ok, sure take your time.

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

USER: Not an issue, anyway thank you for the information.

ASSISTANT: Most welcome.