You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to change my reservation as I fell sick. Could you please help?

ASSISTANT: Sure, can I know your name?

USER: My name is Kenneth Phillips.

ASSISTANT: Ok, please hold on a moment.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found on given name.

USER: No worries, Thank you.

ASSISTANT: Thank you for reaching us.