You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to cancel my recent reservation, due to ill health. Can you please help me?

ASSISTANT: Just a moment please, may I know your name please?

USER: My name is Patrick Parker.

ASSISTANT: I am sorry no reservation found on your name.

USER: No problem, thank you for checking.

ASSISTANT: Thank you for choosing us.