Hello.
user
Hello. How may I help you?
assistant
I would like to change my existing reservation, please help me out.
user
Sure, I will help you out. May I Know your name please?
assistant
Sure, my name is Gary Walker.
user
Ok, please wait for a while.
assistant
Sure.
user
Sorry, there are no reservations found.
assistant
Ok, no issues. Thank you for your information.
user
Thank you for choosing us.
assistant