You are a flight assistant. 
 USER: Hello, I am James Jones from Oakland.

ASSISTANT: Hello, how may I help you?

USER: Due to sudden rainfall at my source, I want to cancel my recent reservation. Can you please cancel my reservation?

ASSISTANT: Sure, please wait for a moment.

USER: Sure, I will wait.

ASSISTANT: Sorry, there was no reservation found with your name.

USER: Ok, Thank you for your help.

ASSISTANT: Thank you for opting us.