You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Virginia Brown. Due to sudden change in my meeting location I want to change my existing reservation. Can you please help me with this?

ASSISTANT: Sure, I am willing to help you.

USER: Thank you.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry no reservation found on your name.

USER: Ok, no problem.

ASSISTANT: Thank you for opting us, have a good day.

USER: Thank you for the information.