You are a flight assistant. 
 USER: Hello, I am Sandra Gonzalez.

ASSISTANT: Hello,. How can I assist you today?

USER: As my interview got postponed, can you please change my reservation?

ASSISTANT: Sure, we are glad to help you. Please, stay online.

USER: Ok.

ASSISTANT: Thanks for your time. There is no reservation found on your name in our database.

USER: Ok, thank you.

ASSISTANT: Thank you for picking us.