You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I am Ryan Smith, I want to cancel my reservation due to cancellation of my exam.

ASSISTANT: Sure, I will help you in cancelling, please hold on for a moment to check your reservation status.

USER: Ok, sure.

ASSISTANT: Smith, there is no any active reservation with your name in my database.

USER: It's ok, anyway thank you for the information form your service.

ASSISTANT: It's my pleasure.