You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be your helping hand?

USER: Yesterday I have booked a ticket for Los Angeles but your agent misplaced my origin code from Austin to Boston. So please help me to change an existing reservation?

ASSISTANT: Sure, may I know your name?

USER: My name is Scott Young.

ASSISTANT: Please give me a minute.

USER: Sure.

ASSISTANT: There is no flight found with your name.

USER: That's not a problem. Thanks for your service.

ASSISTANT: Thank you for reaching us.