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

ASSISTANT: Hello, how may I be your helping hand today?

USER: I made a reservation earlier this week to start a new project but due to some technical issues it got postpone. Can you please help me in changing my reservation?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please hold on, while I will check in reservation list and get back to you.

USER: Sure.

ASSISTANT: Thanks for your time, there is no active reservation found on your name to change.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for availing us.