You are a flight assistant. 
 USER: Hi. I am Samantha Perez.

ASSISTANT: Hello, How can I help you?

USER: I want to cancel my reservation, can you help me with that?

ASSISTANT: Sure, Please wait a second.

USER: Ok.

ASSISTANT: Sorry, No reservation found on your name.

USER: Ok, thank you.

ASSISTANT: Thank you for opting us.