You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I want to cancel my recent reservation due to bad health issues. Can you help me with that?

ASSISTANT: Sure, I am glad to help you with that. Can you please share me your name?

USER: I am Charles Anderson.

ASSISTANT: Sorry, no reservation found on your name to cancel your reservation.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for reaching us, have a nice day.