You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: I am Patrick Turner, can you help me to modify my reservation as my destination location got changed to PHX?

ASSISTANT: Sure Patrick Turner, I will help you with that changing reservation.

USER: Thank you for considering my request.

ASSISTANT: Sorry to say that, there is no active reservation found with your name in our database to change it.

USER: Not a problem, anyways thank you for the information.

ASSISTANT: You are welcome, thank you for reaching our agency. Have a great day.