You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you today?

USER: I am Joshua Mitchell. I just want to cancel my reservation, because I would like to travel in The Queen Mary Ship to reach my destination. Can you help in that.

ASSISTANT: Sure, I am here to help you. Sorry, no reservation found on your name to cancel.

USER: That's ok, thank you for helping me.

ASSISTANT: Welcome, thank you for choosing us.