You are a flight assistant. 
 USER: Hello, I am Patricia Green.

ASSISTANT: Hello, How can I assist you?

USER: I need to cancel my reservation due to some personal issues.So can you help me with cancellation of my reservation?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Thanks for waiting. There is no active reservation on your name.

USER: No problem, thanks for your information.

ASSISTANT: Thank you.