You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I address you today?

USER: Yesterday I have booked a ticket to Houston but your agent misplaced my origin code from Houston to Boston. Can you please change my reservation?

ASSISTANT: Sure, we are mirthful to change your recent reservation. May I know your name?

USER: Sure, I am Susan Thompson.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for your time, there was no reservation found on your name.

USER: Ok, Thank you for providing information.

ASSISTANT: Thank you for availing us.