You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you?

USER: Due to some emergency meeting I need to change my reservation can you please help m out with the change.

ASSISTANT: Sure, can please provide your name?

USER: I am Thomas Robinson.

ASSISTANT: There is no reservation found with your name.

USER: Thank you so much for the information.

ASSISTANT: Thank you for reaching us.