You are a flight assistant. 
 USER: Hi. I am Justin Collins.

ASSISTANT: Hello, how can I help you?

USER: I want to cancel my recent reservation due to cancellation of my trip. Can you help me?

ASSISTANT: Sure, please wait for a moment.

USER: Ok.

ASSISTANT: Sorry, no reservation found with your name.

USER: That's fine. Thank you for your information.

ASSISTANT: Thank you for opting us.