You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Benjamin Nelson. I want to change some details in my previous reservation, can you please help me with that?

ASSISTANT: Sure, I am happy to help you with that.

USER: Thank you.

ASSISTANT: Please wait for a second.

USER: Ok.

ASSISTANT: Sorry for the inconvenience, there is no reservation found on your name.

USER: Oh! It's ok no problem. Thank you for your information.

ASSISTANT: Thank you for consulting us.