You are a flight assistant. 
 USER: Hi, I am Linda Wilson.

ASSISTANT: Hello, what can I do for you?

USER: Owing to an emergency, my business trip got cancelled, so I had a request to you to cancel my existing reservation.

ASSISTANT: Please wait, I will check and revert to you.

USER: Sure.

ASSISTANT: Unfortunately, there is no reservation found on your name.

USER: Ok, no problem. Thanks for your quality service.

ASSISTANT: Thanks for opting us. Have a good day.