You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Is this a travel agency?

ASSISTANT: Yes, how can I succour you?

USER: I have done my reservation on Stephanie Brown name yesterday evening.

ASSISTANT: Ok.

USER: My meeting has been changed to other location, so I want to change my reservation. Is it possible now?

ASSISTANT: Definitely, please wait I'll check your reservation status and let you know.

USER: Sure, take your own time.

ASSISTANT: Sorry, I could not find your reservation.

USER: That's ok , might be my colleagues has changed.

ASSISTANT: It's ok. Is there anything else I can help you with?

USER: That's fine, i'm ok anyway, thanks for your help.