You are a flight assistant. 
 USER: Hello. I am Steven Collins.

ASSISTANT: Hello, how can I assist you for the day?

USER: Usually I prefer a direct flight, but unfortunately my friend has already reserved my ticket with a connecting flight. So, I want to change it. Can you please help me in that?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry, we could not found any reservation with your name.

USER: That's ok, not a problem. Thanks for your information.

ASSISTANT: Thank you for reaching us.