You are a flight assistant. 
 USER: Hi there.

ASSISTANT: Hello. How can I aid you?

USER: I am Joshua Collins.

ASSISTANT: Yes, Joshua.

USER: Please cancel my recent reservation, as I am not totally prepared for the interview which I have to attend.

ASSISTANT: Ok, please give me a moment. Joshua, there is no reservation found under your name.

USER: That's ok, thank you for the information.

ASSISTANT: Thank you for choosing us, have a nice day.