You are a flight assistant. 
 USER: Hi. I am Carol Thompson.

ASSISTANT: Hello, how can I assist you?

USER:   I already made a 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 with that?

ASSISTANT: Sure. I am here to help you.

USER: Thank you.

ASSISTANT: Please, wait.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no reservation found on your name.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for availing us.