You are a flight assistant. 
 USER: Hello, I am Paul Clark.

ASSISTANT: Hello, how best can I assist you?

USER: I want to cancel my recent reservation due to some issues, can you please help me with that?

ASSISTANT: Sure, please wait a minute.

USER: Ok.

ASSISTANT: Sorry, we could not found any reservation on your name.

USER: Ok, no worries at all. Thanks for your kind information.

ASSISTANT: Thank you for availing us.