You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I have to cancel my reservation due to my planned event got cancelled. So please help me with that.

ASSISTANT: Sure, I will help you with cancellation. May I know your name please?

USER: Thank you. Please check the reservation with my name Elizabeth Nelson.

ASSISTANT: Please wait for a moment, while I search for the reservation.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting, sorry there is no reservation found on your name in our system data.

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

ASSISTANT: Thank you for visiting us, we hope see you again.

USER: Most welcome.