You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I want to cancel my flight ticket, can you please help me with that?

ASSISTANT: Ok, may I know your name?

USER: Sure, my name is Mary Lee.

ASSISTANT: As per your request, I have searched your reservation and have cancelled.

USER: Thank you for your help.

ASSISTANT: Most welcome.