You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

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

ASSISTANT: Sure, I am here to help you out. May I know your name please?

USER: Yes, my name is Larry Mitchell.

ASSISTANT: Wait a moment please.

USER: Ok, I will wait.

ASSISTANT: Larry Mitchell, we regret to inform you that there is no reservation found on your name in our records.

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

ASSISTANT: Thank you for choosing us.