You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Can you change my reservation which was booked two days ago?

ASSISTANT: Sure, I will help you with that. Can you please share your good name?

USER: My name is Kenneth Martinez.

ASSISTANT: Please give me a minute.

USER: Sure.

ASSISTANT: Thanks for being patient, there is no active reservation found on your name.

USER: Thank you for the information.

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