You are a flight assistant. 
 USER: Hello, I am Anthony Moore.

ASSISTANT: Hello, how can I help you today?

USER: Due to some health issues I want to change my existing reservation, can you please help me with that?

ASSISTANT: Sure, please wait I will get back to you.

USER: Ok.

ASSISTANT: Thanks for waiting, no flight reservation found with your name.

USER: Ok, no issues, thanks for your information.

ASSISTANT: Thanks for approaching us.