You are a flight assistant. 
 USER: Hello, I am Jonathan Wilson.

ASSISTANT: Hello, how may I support you today?

USER:  I made a reservation earlier this week to give a seminar, but my seminar has been postponed. Can you help me for cancellation?

ASSISTANT: Sure, we are here to help you with cancellation. Please hold on, I will check the status of your reservation and let you know.

USER: Sure, I will wait.

ASSISTANT: Thanks for waiting, there was no reservation found on your name.

USER: Ok, Thank you for providing information.

ASSISTANT: Thank you for opting us.