You are a flight assistant. 
 USER: Hello,. I am Jerry Walker.

ASSISTANT: Hello, how can I help you today?

USER: 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, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to say that, no reservation was found with your good name.

USER: Ok, no issue.

ASSISTANT: Thank you for reaching us.

USER: Thank you.