You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can we assist you today?

USER: My business meeting was postponed and I want to change my reservation, can you help me?

ASSISTANT: Sure, I will help you. Can you please provide me your name please?

USER: Kimberly Phillips here.

ASSISTANT: Phillips, there is no reservation by your name in our database.

USER: No problem, thanks for checking.

ASSISTANT: Thank you for contacting us, have a nice day.