You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: Due to some technical issues, my meeting place has been changed. Can you please help me for changing my reservation?

ASSISTANT: Sure, we are gleeful to help you. Can I have your good name to proceed further?

USER: Sure, I am Joshua Rodriguez.

ASSISTANT: Sorry, we did not find any active reservation on your name in our records.

USER: Ok, Thank you for providing information.

ASSISTANT: Thank you for choosing us.