You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How exactly I can serve you the best today?

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

ASSISTANT: Sure, I can cancel your reservation right now. Before that I need to know your good name please?

USER: My name is Gary King.

ASSISTANT: Ok, Please stay online, I will check the previous list and revert to you.

USER: Sure.

ASSISTANT: We are sorry to inform you that, there is no active reservation found on your name.

USER: Not a problem, thank you for checking.

ASSISTANT: Thanks for reaching us, wish you a great day.