Hello.
user
Hello. How may I help you?
assistant
I want to change my existing reservation, as my exams got postponed suddenly. Can you please help me with this?
user
Sure, I will help you. Can you please tell me your name?
assistant
I am Alexander Turner.
user
Turner, there is no reservation with your name to change further.
assistant
That's fine. Thank you for your time.
user
Thank you for approaching us.
assistant