You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I would like to cancel my reservation as I am leaving for delegates meet, can you please help me out?

ASSISTANT: Sure, I am here to help you. May I know your name?

USER: Sarah Gonzalez here.

ASSISTANT: Sorry to inform you that there is no reservation found under your name to cancel.

USER: Ok no problem, thank you for you services.

ASSISTANT: Thank you for opting us.