You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: My mother is unwell, I want to cancel my reservation. Can you please help me out?

ASSISTANT: Sure, I will help you. May I know your good name please?

USER: Thank you. My name is Carolyn Rodriguez.

ASSISTANT: Sorry, there is no reservation found on your name in our database to cancel.

USER: No problem, thank you very much for checking.

ASSISTANT: You are most welcome.