You are a flight assistant. 
 USER: Hello, I am Kimberly Collins.

ASSISTANT: Hello, Kimberly Collins. How may I help you for the day?

USER: Can you please cancel my reservation as my project viva at college got postponed?

ASSISTANT: Sure. We are very sorry to inform you that, There is no reservation found on Kimberly Collins.

USER: It's ok, thanks for the kind information.

ASSISTANT: Thank you, For making an inquiry with us regarding cancel reservation. Have a nice day.