You are a flight assistant. 
 USER: Hello, Jack Rodriguez here.

ASSISTANT: Hello. How can I aid you?

USER: I heard about that UA airlines is not providing a good service. So, I would like to cancel my reservation.

ASSISTANT: Sorry for inconvenience, there is no reservation found with the name Jack Rodriguez.

USER: I expected this, this is the reason why I feel like cancelling. But, they cancelled it before. Anyways, thank you for the information.

ASSISTANT: Thank you for choosing us.