You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Anna Williams.

ASSISTANT: How can I aid you?

USER: Can you please help me to cancel my active reservation?

ASSISTANT: Sure, please allow me a moment to check for the status.

USER: Ok, I will wait.

ASSISTANT: Thank you for waiting.

USER: Ok.

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

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.