You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I'm Cynthia Adams. I would like to change my reservation which is under my name. Can you please help me with that?

ASSISTANT: Sure Cynthia, I am here to help you with this.

USER: Thank you.

ASSISTANT: Sorry to say Cynthia, that there is no reservation found as per your name to change it.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: You are welcome always.