You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you for today?

USER: In want to change my ticket reservation that my trip got postponed to other date that due to some issues for travelling, can you modify that one?

ASSISTANT: Sure, I will help you with that, can you please provide your name to check the reservation status?

USER: Thank you for accepting my request and my name is Matthew King.

ASSISTANT: Sorry, there is no reservations which are active under your name King.

USER: That's fine, no problem with that one, thank you for your information.

ASSISTANT: My pleasure, thank you for reaching out here.

USER: Most welcome.