You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Patrick Taylor here. I would like to cancel my reservation today, can you help me?

ASSISTANT: Sure, please wait for a while.

USER: Please check, I will be waiting for your response.

ASSISTANT: Sorry Patrick, there is no active reservation found with your name in our records.

USER: Oh! That's very sad to know. Thank you for checking anyways.

ASSISTANT: My pleasure.

USER: Most welcome.