You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: I just want to cancel my reservation, because I would like to travel in The Queen Mary Ship to reach my destination.

ASSISTANT: Sure, may I know your name please?

USER: I am Donald Walker.

ASSISTANT: Ok, please wait for a while, I will check and get back to you.

USER: Ok.

ASSISTANT: Sorry, there was no reservation found with your name.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for opting us.