You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

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 in changing my reservation?

ASSISTANT: Sure, I will help you in changing the reservation. May I know your name please?

USER: Thank you and myself Kathleen Parker.

ASSISTANT: Sorry, there are no reservations found.

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

ASSISTANT: Thank you for reaching us.