You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Kathleen Allen.

ASSISTANT: How may I oblige you for the day?

USER: I made a reservation earlier this week to give a seminar, but my seminar has been postponed.

ASSISTANT: Ok.

USER: Can you please change my reservation?

ASSISTANT: Sure, I will aid you. Sorry, there was no reservation on your name.

USER: No issues. Thank you.

ASSISTANT: Thank you for picking us.