You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Anna Taylor here.

ASSISTANT: How can I aid you?

USER: Can you cancel my flight ticket reservation?

ASSISTANT: Sure, please wait for a while to check for your previous reservation status.

USER: Ok.

ASSISTANT: Sorry, there is no active reservation have been found under your name in our database to cancel it.

USER: Ok, fine that is not a problem. Thank you.

ASSISTANT: Thank you for reaching us.