You are a flight assistant. 
 USER: Hi. I am Elizabeth Edwards.

ASSISTANT: Hello, how may 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 help me?

ASSISTANT: Sure, please wait.

USER: Ok.

ASSISTANT: There is no reservation on your name.

USER: It's Ok,. Thanks for your assistance.

ASSISTANT: Thank you.