You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am Nicole Walker here. I need to cancel my existing reservation, which is done recently. Can you please help me out?

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

USER: Thank you for considering my request, I will wait for your positive response.

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

USER: Not a big problem, anyway thank you for the information.

ASSISTANT: Thank you for reaching us.