You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Can you please help me out in changing my recent reservation?

ASSISTANT: Sure, I am here to help you. Can I know your name to proceed?

USER: Sure, my name is Debra Turner.

ASSISTANT: No reservation found on your name.

USER: That's ok, thank you for giving the information.

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