Hello.
user
Hello, how may I help you today?
assistant
I have booked a ticket for my mother last month. As she is not feeling well, can you help me to change the reservation?
user
Sure, on whose name you have reserved your previous booking?
assistant
Brandon Nelson is the name on which the reservation is done.
user
Sorry to inform you that no reservation found based on your name.
assistant
That's ok, thank you.
user
Thank you for reaching us. Have  a nice day.
assistant