You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am an old person and my son had booked me a flight ticket in the past week and suddenly I met with an accident. So, I am unable to travel the trip and I don't know how to cancel the flight ticket, can you please help me in flight ticket cancellation?

ASSISTANT: Sure, I'll help you in that. May I know your good name please?

USER: Thank you for accepting my request and my name is Susan Thompson.

ASSISTANT: Fine, please be online while I'll check your reservation status. Susan, there is no reservation found under your name to do cancellation.

USER: Ok, I think it has cancelled by my son it self only. Thank you for your search and providing the information.

ASSISTANT: Thank you for choosing us, have a great day.

USER: Most welcome.