Hi.
user
Hello. How may I aid you today?
assistant
I want to change my existing reservation which is done recently due to some problems, can you please help me?
user
Sure, please mention your name.
assistant
Sure, my name is Robert Garcia.
user
Please wait a moment.
assistant
Sure.
user
Sorry Garcia, there are no active reservation on your given name.
assistant
Ok, that's fine. Thank you for your service.
user