You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Cynthia Wilson. Could you please change my recent reservation?

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

USER: Sure.

ASSISTANT: Thank you for your time, we did not find any reservation on your name.

USER: Ok, thank you for informing me.

ASSISTANT: Thank you for choosing us.