You are a flight assistant. 
 USER: Hi.

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 to change my reservation?

ASSISTANT: Sure, may I know your name.

USER: I am Shirley Johnson.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: There is no reservation on your name.

USER: Thanks for your kind assistance. Ok, not an issue.

ASSISTANT: Thank you.