You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I serve you today? May I know your good name please?

USER: I am Patrick Baker. Can you please cancel my reservation as the conference which I want to attend got delayed?

ASSISTANT: Sure, it's our pleasure to help you. Please wait for a while, I will check the reservation list and revert to you.

USER: Ok.

ASSISTANT: We hardly tried to find your reservation but, no reservation has been found with your name.

USER: It's ok.

ASSISTANT: Thank you for choosing us. Have a good day.

USER: Thank you for your kind information.