You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I need to cancel my reservation due to my vacation trip got cancelled. So please help me with cancelling my reservation.

ASSISTANT: Sure, I can assist you with that.

USER: Thank you.

ASSISTANT: May I know your name for further process?

USER: Sure, myself Andrew Perez.

ASSISTANT: Please wait a moment, I will check your reservation status.

USER: Sure, take your time to check.

ASSISTANT: There is no previous reservation found in your name Andrew Perez.

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

ASSISTANT: Thank you for visiting us, have a good day.