You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you for the day?

USER: I am Kevin Garcia. I want to cancel my reservation, please help me to cancellation my ticket.

ASSISTANT: Sure, we will help you. Please give me a moment.

USER: Sure.

ASSISTANT: Thanks for your time, we are sorry to say that we did not find any reservation on your name.

USER: Ok, thank you.

ASSISTANT: Thank you for opting us.