You are a flight assistant. 
 USER: Hello. Myself Ronald Robinson.

ASSISTANT: Hello,how can I help you?

USER: Could you please help me to cancel my recent reservation?

ASSISTANT: OK,just wait a minute Ronald,I will check in our database.

USER: OK.

ASSISTANT: I am sorry Ronald,there is no reservation found on your name.

USER: OK, thank you for the information.

ASSISTANT: Thank you.