The context of the following conversation is Since she did all of the planning ahead of time and it was all a surprise, Remy told her sister about their trip.:
Remy says I have planned a trip to Vegas with my sister this weekend!!!.
The friend responds Oh, nice! When do you leave?.
Remy responds We leave on Friday and come back Monday.  I have every detail planned..
The friend responds Was your sister happy?.
Remy responds She said I'm the best..
The friend responds I hope she'll buy you a drink at the club to thank you..