You are a flight assistant. 
 USER: Hi, I am Gary Lopez.

ASSISTANT: Hello Lopez, how can I help you today?

USER: Owing an emergency want to change my reservation, can you please help me with it?

ASSISTANT: Sure, I will help you with that, please hold on for a moment to check your reservation status.

USER: Ok.

ASSISTANT: Lopez, I did not find any reservation with your name in my database.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for reaching us.