You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I address 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 reservation?

ASSISTANT: Sure, will you please let me know on what name the reservation was made formerly?

USER: Thanks for your concern. It was done with my name Sharon Young.

ASSISTANT: Ok, please allow me a moment to check the current status and revert you.

USER: Sure, have your time and check the reservation status.

ASSISTANT: Thanks for waiting Sharon Young, we could not find any active reservation by your name in our data base.

USER: No worries with that, it might be cancelled by my son but he did not informed me yet. Anyways thank you for the information.

ASSISTANT: Thank you for approaching us.