You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Paul Martinez.

ASSISTANT: How can I guide you today?

USER: I am planning to cancel my reservation because my journey was postponed to next month. Can you help me out?

ASSISTANT: Sure Paul, I am here to help you.

USER: Thank you.

ASSISTANT: Sorry Paul, I did't find any reservation on your name to cancel your reservation.

USER: That's ok, thank you for checking.

ASSISTANT: Welcome, have a nice day.