You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I have already made a reservation earlier 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, we are glad to help you to change your recent reservation. May I know your name?

USER: Sure, I am Cynthia Edwards.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

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

USER: Ok. Thank you for providing information.

ASSISTANT: Thank you for availing us.