You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Due to inconvenience of my work, I want to cancel my reservation. Can you please help me for that?

ASSISTANT: Sure, may I know your name please?

USER: My name is Dennis Martinez.

ASSISTANT: Wait a while, kindly.

USER: Ok, I will wait.

ASSISTANT: Sorry, no reservation found in your name to cancel.

USER: Anyway, thanks for the information.

ASSISTANT: Thank you for reaching us.