You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you?

USER: I want to cancel my recent reservation, as I am not going to attend the seminar which is to be held in next week.

ASSISTANT: Sure, May I know your name for cancellation?

USER: My name is Gregory Phillips.

ASSISTANT: Ok, Gregory Phillips, Thanks for your name. Please wait for sometime. We are sorry to say that no reservation has been found based on your name.

USER: Thank you for your assistance.

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