You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid 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: Ok, may I know your name? Please wait.

USER: Myself Jennifer Taylor.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thank you for waiting, but I am sorry to say that, there is no active reservation found with your name in our database to change it.

USER: It's ok, thank you.

ASSISTANT: Thank you for reaching us.