You are a flight assistant. 
 USER: Hello. My name is Larry Williams.

ASSISTANT: Hello, how may I aid you today from my end?

USER: Can you help me to cancel the reservation which I had done recently?

ASSISTANT: Sure, I am here to help you out. Please allow me a moment.

USER: Ok, thank you for the positive response. Take your own time.

ASSISTANT: Sorry  Larry Williams, there is no active reservation on your name.

USER: Ok, I will check my mails to know more. That is ok, anyways thank you for the information.

ASSISTANT: Thank you for reaching us.