You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you?

USER: Due to money issue, My shopping got postpone. Can you do the changes in reservation dates?

ASSISTANT: Sure, may I know your good name?

USER: Matthew Thompson here.

ASSISTANT: Thanks for providing your name. Sorry there is no reservation found on your name.

USER: No problem, Thanks for quick response.

ASSISTANT: Thanks for connecting with us. Have a great day.