You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Ronald Turner.

ASSISTANT: How may I assist you today?

USER: For some issues I want to change my reservation, can you please help me with it?

ASSISTANT: Sure Ronald, I will check it. Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry Ronald, there are no reservations found on this name.

USER: It's ok. Thank you for the information.

ASSISTANT: Thank you for choosing our services. Have a nice day.