You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I do helping to you?

USER: I want to cancel my recent reservation because my trip got cancelled. Can you please assist me?

ASSISTANT: Sure, I am happy to help you.

USER: Thank you for accepting my request.

ASSISTANT: May I know your name to check the ticket status?

USER: My name is Katherine Lewis.

ASSISTANT: Please give me a moment.

USER: Ok, take your own time.

ASSISTANT: No reservation found for the user which you have given name to search.

USER: It's ok, not a problem. Thank you for the information.

ASSISTANT: You are most welcome and keep contacting us.