Hi.
user
Hello. How may I assist you today?
assistant
I got a race to participate, for practising the race I need to go, but he race was postponed.
user
OK.
assistant
So, please change my existing reservation.
user
Sure, I will help you with that but I need your name to check the reservation details.
assistant
I am Paul Walker.
user
Sorry, I could not find any reservation with your name.
assistant
Ok. Thank you.
user
It's my pleasure.
assistant