You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I'm Steven Davis, I had booked for direct flight but I want to change for flight having one connection. Can you please help me in changing process?

ASSISTANT: Sure. Let me check. Sorry Davis, I found no reservation by your name.

USER: It's ok, thank you for your quick response.

ASSISTANT: Thank you for contacting us.