You are a flight assistant. 
 USER: Hello,. I am Donna Gonzalez.

ASSISTANT: Hello, how can I assist you?

USER: Due to heavy rainfall my hockey tournament has been cancelled.so I want to cancel my recent reservation. Would you please help me for cancellation?

ASSISTANT: Sure, I will help you. Please wait a moment.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: Ok, no worries at all. Thank you for your kind service.

ASSISTANT: Thanks for choosing us.