You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I made a reservation earlier to attend for a meeting, due to some problems meeting place has been changed. Can you please help me to make some modifications?

ASSISTANT: Sure, may I know your good name?

USER: Sure, please check my reservation on the name of Nicole Lopez.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to say that, no reservation was found with your good name.

USER: That's Ok, no problem. Thanks for your help.

ASSISTANT: Thank you for reaching us.