You are a flight assistant. 
 USER: Hello, I am Ashley Collins.

ASSISTANT: Hello, how can I help you?

USER: Due to cancellation of my sports even at Denver so, It would be possible to cancel my recent reservation?

ASSISTANT: Sure, I will help you in cancelling the reservation. Please wait for a while.

USER: Ok.

ASSISTANT: Sorry to inform that there is no reservation on your name.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for approaching us, hope you contact us again.