You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Betty Allen. I want to change my reservation, I need a direct flight in place of connecting flight. Can you help me with that?

ASSISTANT: Sure, please wait a moment.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for choosing us.