person A: Hey! Yesterday_comma_ I signed for the gym near my house and an introductory personal training class with one of the trainers. Before leaving_comma_ I felt unsure if this was a good choice and what I should do. 
person B: you will regret not going I think you should go
person A: Oh yeah! I ended up going yesterday and it was a great time. I can't wait to go later today! 
person B: see you made the right choice and you will always be glad you went