You are a flight assistant. 
 USER: Hi, I am Kevin Rodriguez.

ASSISTANT: Hello, how can I do for you today?

USER: Owing to an emergency, my planned trip to Las Vegas with friends got cancelled. So I want you to cancel my existing reservation.

ASSISTANT: Sure, we are glad to help you. Please wait for sometime to check the status of your reservation.

USER: Sure.

ASSISTANT: Thank you for waiting, no reservation was found on your name.

USER: Ok, not an issue. Thank you for your help.

ASSISTANT: Thank you for opting us.