You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: Could you please cancel my recent reservation?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your name?

USER: I am Gregory Martin.

ASSISTANT: There is no reservation found under your name to cancel.

USER: No problem, thank you.

ASSISTANT: Thank you for opting us.