You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: I am William Brown.

ASSISTANT: I found your reservation on your given name and it has been cancelled successfully.

USER: Ok, thank you.

ASSISTANT: Thanks for choosing us.