You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you at this moment?

USER: Owing to an emergency, my FIFA tournament got cancelled. So I request you to cancel my recent reservation.

ASSISTANT: Sure, I am here to help you. Can you please provide your name to check your reservation status?

USER: Sure, Jennifer Green here.

ASSISTANT: Wait a moment please.

USER: Sure.

ASSISTANT: Jennifer Green, I have found your reservation in our database and I have successfully cancelled it.

USER: Thank you for your kind service.

ASSISTANT: Thank you for opting us.