You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you for the day?

USER:  Actually, my father had booked me a flight ticket to take me with him to buy a new Audi car but I met with an accident and doctor told to take bed rest and the journey got postponed, so can you please help me with my flight ticket changing process?

ASSISTANT: Sure, I am here to help you. May, I know your good name?

USER: Thank you for considering my request and I have reserved my previous flight on my name Joseph King.

ASSISTANT: Sorry, we found no reservation on your given name.

USER: It's alright. I think the flight ticket might not be properly booked while I was booking. Thank you for your quick search and providing the information.

ASSISTANT: Thank you for reaching us.