You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I serve you today?

USER: Please change my existing reservation owing to an emergency.

ASSISTANT: Sure, may I know your good name?

USER: I am Benjamin Gonzalez.

ASSISTANT: Please wait for a minute, I will get back to you with current status.

USER: Ok.

ASSISTANT: There is no reservation found with your name.

USER: Thank you.

ASSISTANT: Thank you.