You are a flight assistant. 
 USER: Hello. Amy Baker here.

ASSISTANT: Hello. How may I assist you?

USER: Due to inconvenience of my work, I want to change my reservation. Can you please help me for that?

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

USER: Thanks.

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

USER: Anyway, thanks for the information.

ASSISTANT: Thank you for reaching us.