You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I want to do some changes in my existing reservation. Can you help me for that?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: May I know your good name?

USER: My name is Anna Edwards.

ASSISTANT: Please give me a minute.

USER: Sure, I will wait for your response.

ASSISTANT: Thanks for waiting, there is no active reservation found on your name to change.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for opting us.