You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Myself Amy Baker. I need to change my existing reservation, can you please help me out?

ASSISTANT: Sure, we are here to help you. Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for your time, there is no active reservation found in your name.

USER: That's ok, thank you for searching my details.

ASSISTANT: Thank you for choosing us.