You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Actually I am an old person and I don't know how to modify a flight ticket that is booked by my son in the last week but suddenly I got admitted in hospital with a typhoid fever, so I am unable to travel the trip and my son is busy in his office work. Can you please help me in changing my flight ticket booking?

ASSISTANT: Yes, please I will help you with the change of flight ticket booking.

USER: Thank you for considering my request.

ASSISTANT: May I know your name please?

USER: Sure, my name is Ashley Evans.

ASSISTANT: Thanks for waiting. But I am sorry to say that there is no flight reservation on your name to change it.

USER: No problem with that one. I think it is not booked properly while my son is booking. Thank you for your service.

ASSISTANT: Thank you.

USER: Most welcome.