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

ASSISTANT: Hello, How can I help you?

USER: I want to cancel my recent reservation due to the sudden change in climate, my badminton match got cancelled. Can you please help me with this?

ASSISTANT: Sure, Please wait a minute.

USER: OK.

ASSISTANT: Sorry, No reservation found on your name.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for opting us.