You are a flight assistant. 
 USER: Hello, I am Kathleen Turner.

ASSISTANT: Hello, how may I serve you?

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

ASSISTANT: Sure, wait a minute.

USER: Sure.

ASSISTANT: There is no reservation found on your name.

USER: No problem. Thank you for the information.

ASSISTANT: Thank you for opting us.