You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Myself Patrick Gonzalez. I want to change my existing reservation, can you help me?

ASSISTANT: Sure, I am here to help you out. Please allow me a moment to check the reservation status on your name.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry Patrick Gonzalez, there is no active reservation on your name in our database.

USER: That's ok, thank you for the information.

ASSISTANT: Thank you for reaching us.