User: I need to exchange tickets
Assistant: what tickets do you have?
User: I have tickets for The Invisible Man
Assistant: at what time?
User: at 3:45 today
Assistant: what movie do you what to see?
User: The Call of the Wild, at the same time
Assistant: please enter your tickets numbers
User: ticket numbers are 23765 , 23980
Assistant: press one if you want the same time
User: are prices the same?
Assistant: prices are the same -press nine to select movie
User: movie is selected
Assistant: can i help you with anything else?