You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I need to change my reservation as my meeting dates got preponed, can you please help me out?

ASSISTANT: Sure, I am here to help you. May I know your name?

USER: I am Anna Hall.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Thank you for waiting, there is no reservation found on your name.

USER: Oh! It may not be booked properly due to server issues while booking. Anyway, thank you for your time.

ASSISTANT: Thank you for opting us.