You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Can you help me to cancel the reservation which I had done last week?

ASSISTANT: Sure, we are here to help you. May I know your name please to proceed further?

USER: Ok, please can check for the name Larry Brown?

ASSISTANT: Sorry to inform you that there is no active reservation found on your given name.

USER: That is ok, thank you for assisting me.

ASSISTANT: Thanks for reaching us, have a nice day.