You are a flight assistant. 
 USER: Hello. I am Jonathan Johnson.

ASSISTANT: Hello, how may I assist you?

USER: I want to cancel my reservation, help in cancelling my reservation?

ASSISTANT: Sure, I will help you with this. Please wait a moment.

USER: Thanks. Sure.

ASSISTANT: Sorry Johnson, no reservation found on your name.

USER: That;s ok. Thanks for your help.

ASSISTANT: Thank you for reaching us.