You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you 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 will help you with that. May I know your name?

USER: My name is Brandon Roberts.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry there is no reservation available on your name in our system data.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for visiting us, have a nice day ahead.