You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Do you need any help from my side?

USER: I am Alexander Wright. I would like to change my reservation as I have to attend some important meeting at my office. Can you please help me?

ASSISTANT: Sure, I can help you and please allow me a moment to check your reservation status.

USER: Sure.

ASSISTANT: Thank you for waiting, there is no reservation found under your name in our data base to help you out.

USER: Not an issue, thank you for the information.

ASSISTANT: You are most welcome and thank you for approaching our agency.