You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I help you?

USER: I am Paul Smith.

ASSISTANT: Ok.

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

ASSISTANT: Sure Paul Smith, no reservation done on your name.

USER: Ok, no problem.

ASSISTANT: Thank you for approaching us.

USER: Thanks for your information.