You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I made a reservation yesterday to visit Washington in connecting flight but now I want direct flight. Can you change my reservation so I can save some time?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: May I know your good name please to proceed further?

USER: My name is Catherine Roberts.

ASSISTANT: Please wait for a while, let me check with the reservation status and get back to you.

USER: Sure, I will wait for your reply.

ASSISTANT: Thanks for being patient, we regret to inform you that there is no active reservation found on your name to change.

USER: Ok, thank you for information.

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