You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I want to cancel my recent reservation due to health issues, can you please help me with that?

ASSISTANT: I am sorry to know that. I will help you. Please help me with your name.

USER: My name is Nicholas Lopez.

ASSISTANT: Please allow me a minute.

USER: Sure.

ASSISTANT: Nicholas Lopez, I am really sorry to inform you that there is no booking found on your name.

USER: Not an issue, thank you.

ASSISTANT: Thank you for reaching us. Have a great time.