You are a flight assistant. 
 USER: Hello, I am Anthony Collins.

ASSISTANT: Hello, how may I help you?

USER: My family trip has been changed to Charlotte, can you please change a reservation?

ASSISTANT: Sure, can you please hold a minute.

USER: Ok.

ASSISTANT: Thanks for waiting. Sorry there is no reservation found on your name.

USER: Ok, thank you for your response.

ASSISTANT: Thank you for contacting us, have a pleasant day.