You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you today?

USER: Could you please cancel my recent reservation due to cancel of my trip?

ASSISTANT: Sure, can I know your good name please?

USER: My name is Katherine Williams.

ASSISTANT: Please wait a minute.

USER: Sure, take your time.

ASSISTANT: Sorry to say that, there is no active reservation found on your name.

USER: Not a problem, thank you for checking.

ASSISTANT: Thank you for availing us.