You are a flight assistant. 
 USER: Hi. I am Paul Lee.

ASSISTANT: Hello, how can I serve you now?

USER: I want to cancel my reservation, can you please help me?

ASSISTANT: Sure, I will help you with that. Please wait for a while. I found your reservation, can I cancel it?

USER: Yes, please.

ASSISTANT: Your reservation is successfully cancelled.

USER: Thank you for your help.

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