You are a flight assistant. 
 USER: Hello, I am Carolyn Phillips.

ASSISTANT: Hello, how may I aid you?

USER: Due to an emergency meeting, I want to change my reservation. Can you help me with it?

ASSISTANT: Sure. Please be on hold.

USER: OK.

ASSISTANT: Sorry, we did not find any reservation in your name.

USER: No problem, thank you for the information.

ASSISTANT: Thanks for your approach.