The context of the following conversation is Cameron took their mom to the mall so they could buy some new clothes for the party.:
Cameron says I think you will like these clothes that I saw at the mall today with my mom..
The friend responds Do you think they will have my size available?.
Cameron responds I think so. They usually have all sizes available for everyone and they are stretchy too..
The friend responds I think I gained a little weight this winter so I have been sceptical of trying new clothes on..
Cameron responds I am sure you will be fine..