You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: Due to an emergency meeting with my family at DEN, I have to change my existing reservation.

ASSISTANT: Ok, May I know your good name please?

USER: I am Christine Phillips.

ASSISTANT: Just a moment.

USER: Ok.

ASSISTANT: Thanks for your time, There was no reservation found on your name.

USER: Thank you for your information.

ASSISTANT: Thank you.