You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

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

ASSISTANT: Sure, I will help you to cancel your reservation.

USER: Thank you.

ASSISTANT: May I know your name?

USER: Sure, my name is Karen Gonzalez.

ASSISTANT: I found your previous reservation and it is successfully cancelled.

USER: Thanks a lot.

ASSISTANT: Welcome, have a nice day.