You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I heard that your airlines in not good for travelling, so I want to cancel my reservation. Can you please help me out?

ASSISTANT: Sure, I will help you with that. Can I have your good name for checking existing reservation status?

USER: Yes, I am Justin Taylor.

ASSISTANT: Ok, please give me a minute and let me check whether the reservation existing or not.

USER: Sure.

ASSISTANT: Thank you for waiting. Sorry Justin, there is no reservation found under your name to cancel.

USER: That's ok. Thank you for your information.

ASSISTANT: Most welcome. Thank you for choosing us.