You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

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

ASSISTANT: Sure, please wait a while. May I know your name please?

USER: Sure, please check the reservation status on the name of Laura Turner.

ASSISTANT: Sorry to say, there is no reservation on your name in our database.

USER: Ok, no issue. Thank you.

ASSISTANT: Thank you for opting us.