You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: My name is Ronald Williams, I want to cancel my reservation as my plan to meet my friend is cancelled. Can you cancel my reservation?

ASSISTANT: Sure, I will help you. Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for being patient, there is no active reservation found on your name in our system data base.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for opting us.