You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Kimberly Smith here.

ASSISTANT: How may I help you?

USER: Cancel my flight reservation? As I want to change my destination for my holiday plan with my friends.

ASSISTANT: Sure, I am here to help you. Please wait for a moment.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found on your name. Thank you for choosing us, have a good day.

USER: Ok, not a problem. Thank you.