You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Michael Green here. I would like to cancel my reservation due some issues at my destination location, can you please help me in that?

ASSISTANT: Sure, I will help you in cancelling your reservation.

USER: Thank you.

ASSISTANT: Please allow me a moment to check for your previous reservation status.

USER: Sure, I will wait for your 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: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for opting us.