You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Nancy Young here.

ASSISTANT: How can I assist you 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: Sure, I will definitely help you with changing your reservation. Please give me a moment, I will check your reservation status.

USER: Thank you for accepting my request, take your time.

ASSISTANT: Thanks for waiting, there is no reservation found under your name.

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: Welcome, have a great day.