You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Kenneth Lopez.

ASSISTANT: Lopez, how may I help you?

USER: I need to cancel my recent reservation, can you please help me out?

ASSISTANT: Lopez, please wait for a while.

USER: Please take your time.

ASSISTANT: Sorry to inform you that there is no reservation found under your name in our database.

USER: That's fine,thank you for searching the details.