You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Myself Amanda Hernandez.

ASSISTANT: Amanda, nice to meet you.

USER: For some personal issues I want to change my reservation, can you please help me?

ASSISTANT: Sure, please hold on for a moment.

USER: Ok.

ASSISTANT: Sorry Amanda, there is no reservation found on your name to change your reservation.

USER: It's ok. Thank you so much.

ASSISTANT: You are welcome.