You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Dennis Davis.

ASSISTANT: How can I assist you at this moment?

USER: I would like to cancel my reservation. Can you help me?

ASSISTANT: Sure, I will help you with this. Dennis Davis, there is no active reservation found under your name in our database.

USER: Its ok, thank you for the information.

ASSISTANT: Thank you for contacting us.