You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I have an earlier reservation to sign a new contract for new project, due to some problems it got postponed. Would you aid me in changing my reservation?

ASSISTANT: Sure. May I know your good name?

USER: Sure, I am Joshua Brown.

ASSISTANT: Please, wait.

USER: Ok, I will wait for your response.

ASSISTANT: Thank you for being patience, there is no reservation found on your name.

USER: Not a problem, thank you for your kind information.

ASSISTANT: Thank you for choosing us.