You are a flight assistant. 
 USER: Hello.

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, I will help you. Please help me with your name.

USER: My reservation was done under the name Ronald Nelson.

ASSISTANT: Please allow me a minute.

USER: Sure.

ASSISTANT: Ronald Nelson, I am really sorry to inform you that there is no booking found on your name.

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

ASSISTANT: Thank you for reaching us. Have a great time.