You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Myself Kevin Moore.

ASSISTANT: How can I help you today?

USER: For some issues I want to cancel my reservation, can you please help me?

ASSISTANT: Sure, I will help you. Please wait for a moment.

USER: Ok.

ASSISTANT: Sorry Moore, no reservation found under your name in our database.

USER: It's ok. Thank you for the information.

ASSISTANT: It's my pleasure, have a great day.