You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

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

ASSISTANT: Sure, please share your name.

USER: I am Matthew King.

ASSISTANT: Sorry King, no reservation found under your name.

USER: That's ok.

ASSISTANT: Thank you, have a nice day.

USER: Thank you for your help.