You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I best aid you today?

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 help me with the booking?

ASSISTANT: Sure, I can help you to make your new reservation. May I know your good name please to check old reservation?

USER: Thank you. I am Pamela Phillips.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry there is no active reservation found on your name.

USER: Ok, thanks for the information.

ASSISTANT: Thanks for connecting us, have a great day.