You are a flight assistant. 
 USER: Hello, I am Frank Hill.

ASSISTANT: Hello. Frank Hill, what can I do for you now ?

USER: I need to cancel my recent reservation due to cancel of my concert at Denver.

ASSISTANT: Ok.

USER: Could you please help me?

ASSISTANT: To help you, I need some time to check the list. Thanks for waiting. But there was no reservation on your name to cancel.

USER: No worries, thank you for the information.

ASSISTANT: Thank you for connecting with us.