You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, what can I do for you?

USER: I want to cancel my recent reservation due to illness. Can you help me in cancellation?

ASSISTANT: Sure, we will help you for cancellation. To proceed further may I know your name please?

USER: I am Katherine Gonzalez.

ASSISTANT: Unfortunately, we did not find any reservation on your name.

USER: Ok, no issue. Thank you for your information.

ASSISTANT: Thank you for availing us. Have a great day ahead.