You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to cancel my reservation, can you please help me with that?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Can I know your name please?

USER: Stephen Campbell here.

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

USER: No problem, thank you for the information.

ASSISTANT: Most welcome.