Hello,.
user
Hello, How may I aid you?
assistant
Owing to an emergency i need to change my existing reservation.
user
Sure, Can you please tell me your name?
assistant
 Sure,I am Samantha Smith.
user
Ok, Wait for some time.
assistant
Ok.
user
Thanks for waiting, we did not find reservation with your name.
assistant
Ok. Thank you for your information.
user
Thanks for your interest, Have a great day.
assistant