You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Janet Harris.

ASSISTANT: How can I assist you now?

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

ASSISTANT: Sure, I will help you with that. Sorry Janet, there is no reservation found on your name.

USER: It's ok.

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

USER: Thank you for the information.