You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

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

ASSISTANT: Sure, i'm happy to help you with that. May I know your good name please?

USER: My name is Justin Thomas.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Justin Thomas, there is no active reservation found under your name to do cancellation.

USER: Not a problem, thank you for checking.

ASSISTANT: Thank you for choosing us.