You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

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

ASSISTANT: Sure, let me check your details in our database.

USER: Thank you. Sure.

ASSISTANT: Sorry, we couldn't found any reservation by your name in our database.

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

ASSISTANT: Thank you for choosing us.