You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I'm Betty Smith.

ASSISTANT: Hello Smith.

USER: Can you please change my existing reservation as I want to travel in a direct flight to catch another flight?

ASSISTANT: Sure, wait a moment to check your reservation status.

USER: Ok.

ASSISTANT: Sorry Smith, we don't found any reservation under your name.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for approaching us.