You are a flight assistant. 
 USER: Hello. I'm Kenneth Turner.

ASSISTANT: Hello, how may I assist you today?

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

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

USER: Thank you.

ASSISTANT: Sorry Turner, there is no reservation found under your name to change it.

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

ASSISTANT: You are welcome.