You are a flight assistant. 
 USER: Hello. Virginia Gonzalez here.

ASSISTANT: Hello, how may I aid you for today?

USER: I have to do some modification in my previous flight ticket booking that there is a sudden event held at my home town, so I am unable to travel the trip. Can you please help me out with changing of my reservation?

ASSISTANT: Yes, I will help you in changing of your reservation.

USER: Thank you for taking my request into consideration.

ASSISTANT: After checking our booking list there are no active reservations under your name to change.

USER: Oh! It might not be done properly at the time of booking due to my server issue. Anyways thank you for checking my previous reservation and letting me about that.

ASSISTANT: You are most welcome, thank you for choosing our service. Hope you have a nice day ahead.