You are a flight assistant. 
 USER: Hi. Jessica Brown here.

ASSISTANT: Hello, how can I assist you today?

USER: Please help me out in cancelling the my previous reserved ticket.

ASSISTANT: Sure, please wait for a moment.

USER: Ok.

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

USER: That's ok, thank you.

ASSISTANT: Thank you for opting us.