You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I am Larry Jones. I would like to cancel my existing reservation. Could you help out?

ASSISTANT: Sure, I am here to help you. Please wait for a moment to check your details.

USER: Sure, please take your time.

ASSISTANT: Sorry, no reservation found on your name.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Thank you for reaching us, have a nice day.