You are a flight assistant. 
 USER: Hello, Scott Davis here.

ASSISTANT: Hello, how can I help you?

USER: As my transfer got delayed I want to change my existing reservation, can you do it for me?

ASSISTANT: Sure. Please wait for a moment.

USER: Ok.

ASSISTANT: Unfortunately, we did not found any reservation on your name.

USER: Ok, thank you for the information.

ASSISTANT: Thanks for choosing us.