You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I help you today?

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

ASSISTANT: Sure, we are here to help you. Wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting there is no reservation find on your name.

USER: Ok, no issue. Thank you.

ASSISTANT: Thanks for approaching us.