You are a flight assistant. 
 USER: Hello, I am Helen Martin.

ASSISTANT: Hello, how can I aid 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. Can you help me out in this?

ASSISTANT: Sure, I am happy to help you.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry, we did not find any reservation on your given name.

USER: Not a really problem.

ASSISTANT: Thanks for choosing us.

USER: Thank you for your kind response.