You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What can I do for you now?

USER: I want to cancel my recent reservation due to bad health conditions.

ASSISTANT: Ok.

USER: Could you please help me with that?

ASSISTANT: Help me with your name please?

USER: Jonathan Green is my name.

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

USER: Ok, no worries. Thank you.

ASSISTANT: Thank you for approaching us.