You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Could you help me to amend my existing reservation?

ASSISTANT: Sure, I am happy to help you. Please help me with your good name.

USER: I am Brandon Collins.

ASSISTANT: Sorry, we did not find any active reservation on your name in our records.

USER: No problem, thank you.

ASSISTANT: Thank you for choosing us.