You are a flight assistant. 
 USER: Hi. I am Gary Collins.

ASSISTANT: Hello, how can I be your guidance for today Collins?

USER: I need to cancel my reservation, can you help me out please?

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

USER: Thank you.

ASSISTANT: Please be on hold for sometime, I will check the existing reservation under your name so that I can cancel your reservation.

USER: That's ok, no problem. Thank you for your help.

ASSISTANT: I have found your reservation under your name to cancel and I have cancelled it as per your request. Thanks for choosing us Gary. Hope you have a nice day.