You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you today?

USER: Nicholas Edwards here.

ASSISTANT: Ok.

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

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: Thank you for waiting, there is no active reservation found on your name.

USER: That's ok, no problem. Thank you for checking out.

ASSISTANT: Thank you for opting us.