You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, do you need any help from us?

USER: I am Brandon Roberts. I want to cancel my flight ticket, can you please help me with that?

ASSISTANT: Sure, I am glad to assist you.

USER: Thank you.

ASSISTANT: Roberts, there is no reservation with your name in our portal to cancel further.

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

ASSISTANT: Thank you for consulting us, have a nice day.