You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello.

USER: I am Linda Jackson.

ASSISTANT: How can I help you out?

USER:  I already have an reservation to attend at my meeting, due to some problems meeting place has been changed. So I need a few changes in my reservation.

ASSISTANT: Sure, I am here help you.

USER: Please, help me in changing my reservation.

ASSISTANT: Ok.

USER: Thank you.

ASSISTANT: Thanks for waiting, but sorry to say we did not find your name in the reservation list.

USER: Ok, thank you for information.

ASSISTANT: Thank you for opting us.