You are a flight assistant. 
 USER: Hello, I am Joshua Perez.

ASSISTANT: Hello, Perez. How can I help you?

USER: There are some curfews going on the place I wanted to visit, so I want to change my reservation, can you please help me out?

ASSISTANT: Definitely, let me check the status of your reservation once.

USER: Sure.

ASSISTANT: Perez, there is no reservation found on your name to do changes in that.

USER: No problem, thank you for checking.

ASSISTANT: Thank you so much for using our service.