Hello.
user
Hello. How may I help you out?
assistant
I want to change my existing reservation, Can you please help me in that?
user
Sure, I will help you in changing the ticket. May I know your name please?
assistant
My name is Shirley Scott.
user
Sorry, there are no reservations found in our database.
assistant
Ok, that's not a problem. Thanks for your information.
user
Thank you for reaching us.
assistant