You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you aid me in changing my recent reservation, which I had done before?

ASSISTANT: Sure, I am here to help you with your concern.

USER: Thank you.

ASSISTANT: Can I have your name please to check your reservation status?

USER: Myself Samantha Lee.

ASSISTANT: Please hold on a moment.

USER: Sure, take your time.

ASSISTANT: Samantha Lee, no reservation has been found on your name in our database.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for choosing us.