You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I want change my reservation as in new reservation I want a connected flight for my journey. Can you please aid me to change it?

ASSISTANT: For further proceeding may I know your name please?

USER: Sure, you can check my reservation on the name of Stephen Hill.

ASSISTANT: Sorry to inform you that, we did not find any reservation on your given name.

USER: That's Ok, thanks for your help.

ASSISTANT: Thank you for opting us.