You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Joseph Adams. I would like to cancel my reservation as I am leaving for final exams, can you please help me out?

ASSISTANT: Sure, let me check the status and revert you.

USER: Sure. Thank you.

ASSISTANT: We could not find any reservation by your name.

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

ASSISTANT: Thank you for choosing us.