You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I need you to cancel my recent reservation. Please help me.

ASSISTANT: Ok, may I know your good name?

USER: My name is Larry Campbell.

ASSISTANT: Please wait for a moment.

USER: Sure, I will wait.

ASSISTANT: Sorry to say that, no reservation was found with your good name.

USER: That's ok. Thank you.

ASSISTANT: Thank you for reaching us.