You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Jason Gonzalez. I would like to change my reservation as I am leaving for hometown, can you please help me out?

ASSISTANT: Just a moment please. I am sorry no reservation found on your name.

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

ASSISTANT: Thank you for choosing us.