You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you at this moment?

USER: I have to cancel my flight ticket, can you help me?

ASSISTANT: Sure, I will help you with that. Can you please provide your name for checking reservation status?

USER: My name is William Martin.

ASSISTANT: Sorry Martin, there is no previous reservation under your name to cancel.

USER: That's fine, no problem with that one, thank you for your help.

ASSISTANT: Thank you for reaching out here.