You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I made an earlier reservation to attend a marriage, due to some issues it got postponed. Can you please change my reservation?

ASSISTANT: Sure, please share me your good name.

USER: My name is Laura Martin.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry to say that, there is no active reservation found on your name.

USER: Ok, not an issue.

ASSISTANT: Thank you for opting us.

USER: Thank you.