You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: Virginia Hill here. 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: Sure, I am here to help you Hill, please wait for a moment to check the reservation details in our database.

USER: Ok sure.

ASSISTANT: Thanks for your patience, as per your request there is no reservation with your name in our database.

USER: That's ok, thank you for your help.

ASSISTANT: Thanks for reaching us, have a great day ahead.