You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you please help me in changing my reservation?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: May I know your good name please?

USER: My name is Scott Carter.

ASSISTANT: Ok, Please give me a moment.

USER: Ok, take your own time.

ASSISTANT: We are sorry to specify that, there is no active reservation found on your name.

USER: Not an issue, thank you for the information.

ASSISTANT: Thanks for approaching us, wish you a great day.