Be less nice (but respectful) next time, find the balance
One good advice I've read is "The only way it is worth doing - I ask/tell (what I want to be done), she does. I pay to live out my fantasies". Within provider boundaries, of course, so some things are better to be discussed in the beginning I think, not to be turned down during the act.

Good tip on not accepting a for a drink, not to waste time.
But it's on you to track the time of course, everywhere I've been so far the clock is very visible.

Overall, Liasons gives me bad vibes, being "no booking" and no info on who provides which services.