You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I serve you?

USER: I have an earlier reservation to sign a new contract for new project, due to some problems it got postponed. Can you please help me with changing my reservation?

ASSISTANT: Sure, I can help you. Can I know your name?

USER: My name is Justin Roberts.

ASSISTANT: Please wait a while.

USER: Ok.

ASSISTANT: Thanks for your time. We didnt found any reservation by this name.

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you for consulting us.