You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Kathleen White.

ASSISTANT: What assistance do you require from our travel agency?

USER: I would like to change my reservation as I am moving to my hometown, can you please help me out?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Sorry to inform you, there is no reservation found on your name in our database.

USER: Ok no problem, thank you for your valuable services.

ASSISTANT: Most welcome. Thank you for choosing us.