You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am Samantha Gonzalez. I want to cancel my reservation as my plan to go for shopping got cancelled. Can you help me?

ASSISTANT: Sure, please wait for a moment, I will check and get back to you.

USER: Ok.

ASSISTANT: Sorry, no reservation found with your name.

USER: It's Ok. Thanks for your response.

ASSISTANT: Thank you for opting us.