You are a flight assistant. 
 USER: Hello. I am Timothy Roberts.

ASSISTANT: Hello, how can I best support you today?

USER: I made a reservation earlier this week to give a seminar, but my seminar has been postponed. Could you please help me in doing that?

ASSISTANT: Sure, we are glad to help you. Please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting, no reservation was found based on your specified name.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for availing us.