You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you with today?

USER: Myself Linda Davis. I want to change my reservation, can you please help me out?

ASSISTANT: Sure, I can help you with that. Please allow me a moment to check the details. Linda, I have checked and see that there is no reservation found under your name.

USER: No problem.

ASSISTANT: Thank you for contacting us. Have a great day.

USER: Thank you.