You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Myself Kenneth Martinez. I want to cancel my recent reservation, could you please help me with this?

ASSISTANT: Yes Kenneth, just hold on for a moment. I'm sorry Kenneth, there are no reservations with your name.

USER: Thank you for your help and valuable information.

ASSISTANT: Thank you, have a good day.