You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Daniel Smith, I want to cancel my reservation as my plan to visit my brother is cancelled. Can you cancel my reservation?

ASSISTANT: Sure, I am here to help you. Please stand by.

USER: Sure.

ASSISTANT: Thank you for waiting. Sorry to inform that no reservation found on your name.

USER: Thank you for the information.

ASSISTANT: Thank you for reaching us, have a nice day.