You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I am Kenneth Williams. I need to amend my reservation, can you help me out please?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

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

USER: That's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.