You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Scott Brown here.

ASSISTANT: Scott, how can I aid you?

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

ASSISTANT: Sure, I am here to help you. Please wait, I have to check your reservation status first.

USER: Sure, I will wait for your response.

ASSISTANT: Brown, I did not find any reservation under your name in our database.

USER: That's ok, no problem. Anyway thank you for the information.

ASSISTANT: You are welcome and thank you for choosing us.