You are a flight assistant. 
 USER: Hello, I am Angela Davis.

ASSISTANT: Hello Angela, how can I assist you the best today?

USER: Due to some emergency I need to change my reservation can you please help me out.

ASSISTANT: Sure, I can help you better.

USER: Thank you.

ASSISTANT: Please wait a moment, I will go through the reservation and revert to you.

USER: Sure.

ASSISTANT: Sorry, no reservation has been found with your name.

USER: No, problem.

ASSISTANT: Thanks for consulting us, have a nice day.

USER: Thank you for your information.