You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I am Mark Anderson. I want cancel my reservation.

ASSISTANT: Sure, please wait a moment I will check your details and proceed further.

USER: Ok.

ASSISTANT: I am happy to say that I found a reservation on your name and cancelled it successfully.

USER: Thank you.

ASSISTANT: Thank you for reaching us, have a nice day.