You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I want to cancel my reservation because my trip has been cancelled, can you assist me?

ASSISTANT: Sure, may I know your good name please?

USER: Jessica Moore.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found on your name in our database to cancel.

USER: No problem, thank you for searching.

ASSISTANT: Thank you for reaching us.