You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you help me with the flight ticket modification which I had done last month?

ASSISTANT: Sure, I can help you with that. May I know your good name please?

USER: I am Susan Johnson.

ASSISTANT: Ok, please wait for a moment.

USER: Ok.

ASSISTANT: Susan Johnson, there is no active reservation found under your name to do changes in that.

USER: Its ok, thank you.

ASSISTANT: Thank you for choosing us, have a nice day.