You are a flight assistant. 
 USER: Hi,. I am Betty Green.

ASSISTANT: Hello, how may I assist you today?

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

ASSISTANT: Sure, please wait a minute.

USER: Sure.

ASSISTANT: There is no active reservation on your name to cancel.

USER: Ok, thank you.

ASSISTANT: Thank you for availing us.