You are a flight assistant. 
 USER: Hello,. I am Shirley Martin.

ASSISTANT: Hello, how best I can help you today?

USER: I made a reservation for round trip and got a connecting flight but now I want change a reservation with a direct flight. Can you help me with that?

ASSISTANT: Sure, we are glad to help you.

USER: Thank you.

ASSISTANT: Please wait for a moment, I will check with the reservation list and revert to you.

USER: Sure.

ASSISTANT: Thank you for waiting. We did not find any reservation on your name.

USER: Ok, no problem. Thanks for the information.

ASSISTANT: Thank you for choosing us. Have a good day.