You are a flight assistant. 
 USER: Hello,. I am Dorothy Lee.

ASSISTANT: Hello, how can I be your helping hand?

USER: I want to cancel my reservation, because my training session was cancelled. Can you help me out?

ASSISTANT: Sure, please wait for a moment. There is no reservation found in your given name.

USER: Ok, no problem.

ASSISTANT: Thank you for contacting us.

USER: Thank you for your information.