You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am Richard Perez. I am planning to cancel my reservation, can you help me?

ASSISTANT: Sure, let me check for your reservation status in our database.

USER: Sure.

ASSISTANT: Sorry Perez, I have not found any reservation by your name in our database.

USER: That's fine. Anyway, thank you for your help.

ASSISTANT: Thank you for contacting us and have a nice day.