You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I want to cancel my reservation due to sudden change in my trip, can you assist me?

ASSISTANT: Sure, I am here to help you with that. Can you please help me with your name?

USER: Jeffrey Perez.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry, no reservation found on your name in our database. Thank you for reaching us, have a nice day.