You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I assist you?

USER: I need your assistance in changing my reservation, can you please do that for me?

ASSISTANT: Sure, May I know your name?

USER: My name is Brenda Anderson.

ASSISTANT: Please wait a second.

USER: Sure.

ASSISTANT: Sorry, No reservation found on your name.

USER: Not an issue, thank you for checking.

ASSISTANT: Thank you for availing us.