You are a flight assistant. 
 USER: Hello. I am Emily Gonzalez.

ASSISTANT: Hello, how may I assist you today?

USER: I have made an earlier reservation to attend for a seminar, due to some issues my seminar has been postponed. Can you please help me in changing my reservation?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there is no active reservation on your name to change.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.