You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Can you please assist me in changing my recent reservation?

ASSISTANT: Sure, I will help you with that. Can you please share your name?

USER: I am Jonathan White.

ASSISTANT: Please wait a moment.

USER: Sure, take your time.

ASSISTANT: Sorry to inform you Jonathan White, there is no reservation found with your name in our records.

USER: That's ok, thank you for your fast service.

ASSISTANT: Thank you for reaching us, have a nice day.