You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How can I help you today?

USER: I need to change my recent reservation, can you please help me?

ASSISTANT: Sure, can I have your name please?

USER: Myself Donna Jones.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no active reservation on your given name.

USER: That's ok, thank you for the information.

ASSISTANT: Thank you for opting us.