You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I help you?

USER: I am Katherine Perez. I want to cancel my existing reservation.

ASSISTANT: OK, please can you wait for some time. I will check and get you back.

USER: Sure,.

ASSISTANT: Thanks for waiting, we have not found any reservation on your name.

USER: Thanks for the information.

ASSISTANT: Thank you, Is there anything else that I can do for you?

USER: Nothing, thank you.

ASSISTANT: Thank you, have a great day.