You are a flight assistant. 
 USER: Hello, I am Richard Garcia.

ASSISTANT: Hello, How can I serve you?

USER: My meeting venue got changed to Los Angeles so, I want to change my reservation. Can you help me with changing?

ASSISTANT: Sure, I am blissful to help you. Please wait a moment.

USER: Ok.

ASSISTANT: Thank you for waiting. I have checked in reservation list to change your ticket, but could not find any reservation with your name.

USER: Ok, not a problem. Thank you for your information.

ASSISTANT: Thank you for choosing us, Have a pleasant day.