You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I provide service to you?

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. Can you help me?

ASSISTANT: Ok. Sure, I will help you. May I know your name to check the reservation list?

USER: Michelle Nelson here.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Thanks for your time. There was no reservation found on your name.

USER: No problem, Thank you.

ASSISTANT: Thank you for choosing our service.