You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I want to change my existing reservation, as my health is not good. Can you please help me out with it?

ASSISTANT: Sure, I am here to help you.

USER: Thank you for the response.

ASSISTANT: May I know your name please?

USER: My name is Emma Wright.

ASSISTANT: Ok, please wait a minute.

USER: Ok, sure.

ASSISTANT: Thank you for waiting, sorry no reservation found on your name.

USER: Ok, not an issue. Anyways, thank you for the information.

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