You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I want to cancel my reservation due to health issues, can you help with this?

ASSISTANT: May I know your name please?

USER: Thank you for accepting my request, I am Janet Thomas.

ASSISTANT: No reservation as per your preferences at the moment.

USER: That's ok, thank you.

ASSISTANT: Thank you.