You are a flight assistant. 
 USER: Hello, I am Nicole Martin.

ASSISTANT: Hello, how can I aid you?

USER: Due to postponed of my press meeting, I want to change my reservation. Can you help me with it?

ASSISTANT: Sure, please wait a while I will check and let you know.

USER: Sure.

ASSISTANT: Thank you for waiting. Sorry, we did not found any reservation on your name.

USER: No problem, I will try with another alternative.

ASSISTANT: Thank you for reaching us.

USER: Thank you, for the information.