You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Due to some entrepreneurship meeting, I am going to change my existing reservation. Can you please help me in changing the reservation?

ASSISTANT: Ok, may I know your good name?

USER: Kathleen Rodriguez here.

ASSISTANT:  Please wait I will revert you in a moment.

USER: Sure, I will wait.

ASSISTANT: Sorry no reservation was found on your name.

USER: No issue, Thanks for the information.

ASSISTANT: Thank you for availing us.