You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: I am Andrew Harris. I want to cancel my reservation, help me in that?

ASSISTANT: Sure, we are here to help you. Please wait a moment.

USER: Ok.

ASSISTANT: Sorry, there is no active reservation found o your name to cancel.

USER: That's ok, thank you.

ASSISTANT: Thank you for reaching us.