You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you now?

USER: I would lik eto cancel my recent reservation due to cancel of my seminar in my college. Could you please help me?

ASSISTANT: Sure, I will help you with that. May I know your good name please?

USER: I am Benjamin Taylor.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry there is no reservation found on your name in our system data.

USER: No worries, thank you for the information.

ASSISTANT: Thank you for visiting us.