You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I amend you?

USER: I am Ashley Roberts, I made a reservation earlier, due to sudden change in my schedule I want to cancel my reservation, help me in cancelling my reservation.

ASSISTANT: Sure, I am here to help you. Please wait for a while.

USER: Thank you. Sure.

ASSISTANT: Thanks for waiting. There is no reservation found on your name.

USER: Its ok, Thank you for your assistance.

ASSISTANT: Thank you for availing us.