You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Scott Harris.

ASSISTANT: How may I assist you?

USER: Can you change my recent reservation?

ASSISTANT: Sure, I am here to help you out.

USER: Thanks.

ASSISTANT: Scott Harris, we  haven't found any reservation under your name in our database.

USER: Ok, take your time. It's ok, thanks for your information.

ASSISTANT: Thank you for reaching us.