You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Due to sudden change of my business meeting because of some technical problem, I need to change my reservation. So, can you help me with that?

ASSISTANT: Sure, may I know your name?

USER: Sure, Deborah Scott is my name.

ASSISTANT: Wait a minute.

USER: Sure.

ASSISTANT: We could not find any reservation on your name.

USER: Ok, thanks for your information.

ASSISTANT: Thank you for reaching us.