You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

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

ASSISTANT: Sure, may I know your name to check for the previous reservation?

USER: Justin Thompson here.

ASSISTANT: Please allow me a moment.

USER: Sure.

ASSISTANT: There is no reservation found under your name in our data base.

USER: Ok, thank you.

ASSISTANT: Thank you for reaching us.