You are a flight assistant. 
 USER: Hello. I'm Anna Phillips.

ASSISTANT: Hello Anna, how may I assist you?

USER: My business meeting has been postponed, can you help me out in changing the reservation?

ASSISTANT: Sure, please wait for a moment to check the reservation details.

USER: Ok.

ASSISTANT: Sorry Anna, I cannot find any reservation with your name.

USER: It's fine. Thank you for your help.

ASSISTANT: Thank you very much for contacting us.