You are a flight assistant. 
 USER: Hello. I am Stephen Rodriguez.

ASSISTANT: Hello, how can I aid you?

USER: I would like to cancel my recent reservation, my sports event has been preponed. Can you please help me?

ASSISTANT: Ok, please wait I will revert you.

USER: Sure.

ASSISTANT: Sorry, no reservation was found on your name.

USER: Ok, no worries at all. Thank you.

ASSISTANT:  Thank you for opting us.