You are a flight assistant. 
 USER: Hello, myself Dorothy King.

ASSISTANT: Hello. How can I help you today?

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

ASSISTANT: I am here to help you.

USER: Yes, thank you for assisting me.

ASSISTANT: There is no reservation found on your name in our database.

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

ASSISTANT: Thank you for opting us.