You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I already have an reservation to attend a meeting, due to some problems meeting place has been changed. So I need a few changes in my reservation, Can you please help me in this?

ASSISTANT: Sure, I can help you with that. May I know your good name please?

USER: Myself Deborah Carter.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Deborah Carter, there is no active reservation found under your name to do modifications in that.

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

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