You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: My wedding got postponed, so I want to change my reservation. Could you help me out?

ASSISTANT: I am here to help you, could you help me with your name please?

USER: My name is Kathleen Phillips.

ASSISTANT: Phillips, I have not found any reservation by your name in our database.

USER: No problem, thank you for checking.

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