Hello.
user
Hello.
assistant
 My son is giving a presentation on international competition, but due to some sudden changes, I want to change my existing reservation.
user
Is there something I can help you with? Sure, I am happy to help you. Give me a minute.
assistant
Please, check the previous reservation on Timothy Hill.
user
I am sorry to say that there is no reservation found.
assistant
That's ok. Thank you for your information.
user
Welcome.
assistant