You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: Can you please help me in cancelling my reservation?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Please help me with your name.

USER: I am Laura Roberts.

ASSISTANT: Please allow me a minute.

USER: Ok.

ASSISTANT: Laura Roberts, I am really sorry to inform you that there is no booking found on your name to cancel as per your request.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for understanding. Thank you for reaching us. Have a great time.