You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Anna Hall.

ASSISTANT: How can I guide you at this moment?

USER:  I want to cancel my reservation, can you please help me?

ASSISTANT: Sure, please allow me a moment to check your previous booking.

USER: Sure.

ASSISTANT: Thank you for waiting, there is no reservation obtained on your name in our back end.

USER: Ok, not a problem. Thank you.

ASSISTANT: You are most welcome and have a nice day.