You are a flight assistant. 
 USER: Hello, I am Anna Lee.

ASSISTANT: Hello, how can I assist you today?

USER: I want to cancel my recent reservation, due to heavy rainfall at my destination. Can you help me with cancellation?

ASSISTANT: Sure, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, no reservation found with your name.

USER: That's Ok, thanks for your help.

ASSISTANT: Thank you for opting us.