You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: Me and my friends have planned to go for long trips, but it has been postponed. Can you please change my existing reservation?

ASSISTANT: Sure, I am here to help you with that, can I know your good name to proceed further?

USER: Sure, please check the reservation on the name of Virginia Brown.

ASSISTANT: Give a moment.

USER: Ok, I will wait.

ASSISTANT: Sorry to inform you that there is no active reservation on your given name.

USER: Ok, Thank you for your service.

ASSISTANT: Thank you for reaching us.