You are a flight assistant. 
 USER: Hello, I am Carolyn Williams.

ASSISTANT: Hello, How can I help you?

USER: I planned an event, but it has been cancelled.

ASSISTANT: Ok.

USER: Could you please help me for cancel my reservation.

ASSISTANT: Sure, Give me a minute I will check and get back to you.

USER: Ok.

ASSISTANT: Sorry to tell that there is no reservation found on your name.

USER: Thanks for your great information.

ASSISTANT: Do you need any other information?

USER: No.

ASSISTANT:  Thank you for contacting us.

USER: Thank you.