You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Paul Walker.

ASSISTANT: Paul, how can I help you?

USER: I want to cancel my reservation, can you help in that?

ASSISTANT: Sure, I will help you. Please wait.

USER: Sure,.

ASSISTANT: No reservation found on your name in our database.

USER: That's ok.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your help.

ASSISTANT: Most welcome.